AD/DHC-2/10 Amdt 8 - Lift Strut and Lift Strut Attachment Fittings

This airworthiness directive requires mandatory inspections (fluorescent penetrant) of the upper lift‑strut attachment, scheduled replacement of complete lift struts and specified attachment fittings and bolts, and routine checks for looseness or misalignment, all to the hours and intervals set in the Compliance table. It applies to all DHC‑2 (Beaver) aircraft and treats components previously used in agricultural operations more conservatively (Column A). Operators pay for inspections and replacements; the measures follow manufacturer fatigue testing after in‑flight failures. (Requirements 1–5; Compliance table.)

This Airworthiness Directive, AD/DHC-2/10 Amdt 8, issues mandatory inspection and retirement-life requirements for lift struts and lift-strut attachment fittings on DHC-2 (Beaver) series aeroplanes. Mechanically, the AD imposes five core actions:

A fluorescent-penetrant inspection for cracking of the upper attachment fitting of each lift strut at the inspection times stated in the compliance table, item (1) (Requirement 1).
Mandatory replacement of complete lift struts at the retirement lives specified in compliance table, item (1) (Requirement 2).
Replacement of wing/strut and fuselage/strut attachment fittings at the retirement lives specified in compliance table, items (2) and (3) (Requirement 3).
Repeated checks for looseness of lift-strut attachment bolts in their holes and for any evidence of misalignment of the strut or of the wing and fuselage strut attachment fittings at the times specified in compliance table, item (4), with the explicit rule that "Any misalignment or looseness of fit shall be corrected before further flight" (Requirement 4).
Replacement of strut upper and lower attachment bolts with new bolts at the times specified in compliance table, item (5) (Requirement 5).

The AD provides detailed part numbers and separate compliance columns for components that have been used in agricultural operations (column A) and those that have not (column B). It specifies inspection intervals (initial and repeat), retirement lives (hours in service), and special rules for modified struts (inspection lives measured in hours time in service of the oldest component of the strut). The compliance tables include explicit part numbers, and for a set of part numbers not listed, the table states "NOT PERMITTED IN OPERATION."

The AD expressly draws operators' attention to de Havilland Aircraft Company of Canada Service Bulletin (SB) No 2/43, which warns against using the lift strut for mooring, attachment of external loads and similar uses that may significantly reduce fatigue life (Note). The AD states its legal context in the header as a Schedule of Airworthiness Directives under the Commonwealth of Australia (Civil Aviation Regulations 1998), Part 39, published by the Civil Aviation Safety Authority.

The stated technical purpose in the AD's background is prevention and detection of fatigue cracking in the lift strut and its attachments, based on manufacturer fatigue testing and analysis after a number of in‑flight failures. The AD therefore combines periodic non‑destructive inspection (fluorescent-penetrant) with hard retirement lives for parts and bolts and corrective measures before aircraft are returned to service.

The AD revolves around three interlocking airworthiness-control concepts: inspection, retirement life, and operational-use differentiation.

Inspection: The AD mandates fluorescent-penetrant inspection (FPI) of the upper attachment fitting of each lift strut at specified times per the compliance table (Requirement 1). The AD also requires routine checks for bolt looseness and alignment (Requirement 4), and mandates corrective action before further flight if looseness or misalignment is detected. These inspections are expressed as initial and repeat intervals in hours time in service, with repeat intervals for modified components keyed to the oldest constituent part.

Retirement life: The AD sets definitive retirement lives, measured in hours time in service (and in one case either hours or number of flights), for complete lift struts, wing/strut fittings and fuselage/strut fittings, and for attachment bolts. The compliance table links specific part numbers to different retirement lives. For example, the lift strut part C2W1103A carries an initial inspection at 2100 hours under column A, an inspection not required under column B, a component retirement life of 2480 hours for column A and 20000 hours for column B. Some other parts, for example certain wing/strut and fuselage/strut fittings, are given retirement lives of 30000 hours and are marked "Not required by this AD" for certain inspection columns , meaning the AD does not require inspection but does require retirement replacement at the specified life.

Operational-use differentiation: The AD explicitly distinguishes components that have at any time been fitted to an aircraft while engaged in agricultural operations (column A) from those that have never been so fitted (column B). Columns A and B set different inspection and retirement thresholds. The text states that columns headed "A" apply to components which have at any time been fitted to an aircraft while engaged in agricultural operations and columns headed "B" apply to components which have never been fitted to an aircraft while engaged in agricultural operations. That creates different regulatory obligations based on historical use.

Other programme features:

Modifications and oldest-component rule: For modified struts, inspection intervals and retirement lives are determined by hours in service of the oldest component of the strut assembly.
Part-number specificity and operation prohibition: The tables include specific part numbers and contain a statement that "All other numbers NOT PERMITTED IN OPERATION," indicating that any part number not listed is not allowed to remain installed in operational aircraft under this AD.

Directly affected parties

Aircraft owners and operators of DHC-2 (Beaver) series aeroplanes. The AD applies to "All models" of the DHC-2 (Applicability). Owners/operators are required to carry out the inspections and replacements and to correct any misalignment or looseness before further flight. The AD imposes duties on operators to ensure particular parts are inspected, replaced or removed from service according to the stated hours and part numbers.
Maintenance organisations and certificated maintenance personnel who perform fluorescent-penetrant inspections, alignment checks, bolt replacement and the physical replacement of struts and fittings. The AD prescribes inspection methods (FPI) and replacement requirements that will be implemented by maintenance providers.
Parts suppliers and overhaul organisations that supply lift struts, attachment fittings and bolts identified by part numbers in the compliance tables. Some part numbers are specifically required to be replaced at stated retirement lives; suppliers need to certify new parts and keep traceability so that operators can demonstrate compliance.

Indirectly affected parties and operational consequences

Operators conducting agricultural operations. The AD creates separate (tighter) inspection and retirement thresholds for components that have been fitted while the aircraft was engaged in agricultural work (Column A). Where a component has "at any time" been fitted while the aircraft was engaged in agricultural operations, it falls into the A column regardless of current use. That raises an operational effect: historical use imposes longer-term higher maintenance frequency and earlier retirement.
Owners who contemplate changing the role of the aircraft. Because the AD classifies components by whether they have ever been fitted during agricultural operations, decisions about aircraft role and how components are tracked will affect maintenance burdens. The AD's requirement that modified strut inspections use the oldest component hours (the "oldest component" rule) also affects decisions around mixing new and used parts.
Operators of aircraft with parts whose numbers are not listed. The table includes "All other numbers NOT PERMITTED IN OPERATION." This phrase directly impacts any operator with unlabeled or non‑listed parts: those parts cannot remain in operation under this AD.

Who pays and who decides

The financial responsibility for compliance falls on the aircraft owner/operator. The AD requires replacement of whole struts, fittings and bolts at stated retirement lives and repeated inspections; parts, labour and downtime are therefore the operator's costs.

Key duties imposed by the AD

Inspection duty (Requirement 1): Operators must perform fluorescent-penetrant inspection (FPI) for cracking of the upper attachment fitting of each lift strut at the times specified in the compliance table, item (1). The AD uses the FPI method by name; the inspection is not specified as optional. The inspection requirement includes initial and repeat intervals shown in the compliance table and distinguishes inspection requirements by column A (agricultural-exposed components) and column B (non-agricultural).
Retirement/replacement duty for complete lift struts (Requirement 2): Operators must replace entire lift struts with new struts at the retirement lives specified in compliance table, item (1). For modified struts, retirement lives and inspection intervals are measured in hours time in service of the oldest component of the strut assembly (the AD states this expressly: "for modified struts are in hours time in service of the oldest component of the strut").
Retirement/replacement duty for attachment fittings (Requirement 3): Operators must replace wing/strut attachment fittings and fuselage/strut attachment fittings with new fittings at the lives specified in compliance table, items (2) and (3).
Immediate corrective action duty for looseness and misalignment (Requirement 4): Operators must check for looseness of the lift strut attachment bolts in their holes, and for any evidence of misalignment of the strut or of the wing and fuselage strut attachment fittings at times specified in compliance table, item (4). The AD requires that "Any misalignment or looseness of fit shall be corrected before further flight."
Bolt replacement duty (Requirement 5): Operators must replace strut upper and lower attachment bolts with new bolts at the times specified in compliance table, item (5). The table includes specific part numbers such as AN180-26 and C2W497 used with C2W1115-1/-2 fittings and prescribes lives (for example, 5000 hours or 60000 flights, whichever occurs first, for those bolts when used with the specified fittings).

Rights or optional elements within the AD

The AD includes a Note drawing attention to Service Bulletin DHC SB No 2/43. The SB warns against using the lift strut for mooring and attachment of external loads because such use may significantly reduce fatigue life. The Note is advisory: it draws attention to the SB's warnings but does not by itself create additional mandatory inspections beyond the AD's requirements.

What the AD says and what the text omits

The AD is published as part of the Commonwealth of Australia (Civil Aviation Regulations 1998), PART 39 , Schedule of Airworthiness Directives, and is therefore a mandatory airworthiness instrument issued by the Civil Aviation Safety Authority (CASA) (header). The AD itself sets out mandatory inspection and replacement actions and states operational conditions such as "Any misalignment or looseness of fit shall be corrected before further flight." However, the AD text supplied does not specify civil or criminal penalties, administrative fine provisions, or enforcement procedures. The document sets technical and operational requirements; it does not include an enforcement clause in the text provided.

Enforcement mechanisms and practical realities (derived from instrument form)

By its nature as an Airworthiness Directive published under CAR Part 39, the AD operates as a mandatory direction to correct an identified unsafe condition. Compliance with an AD is a regulatory requirement for continued airworthiness. Although the AD text here does not include explicit penalty clauses, failure to comply with the AD will generally be treated as non‑compliance with applicable airworthiness requirements enforced by the regulator. The AD's placement within the Schedule of Airworthiness Directives indicates it is part of the regulator's mandatory controls.
The AD also contains an operational prohibition for unspecified part numbers: the compliance table includes "All other numbers NOT PERMITTED IN OPERATION." That language functions as an absolute operational restriction under the AD for parts not listed; the AD therefore creates a present prohibition on the continued use of unlisted part numbers.

Implementation and detection of non‑compliance

Non‑compliance will typically be detected through maintenance records during audits, through airworthiness inspections, or in the event of maintenance action or incidents. The AD ties obligations to specific inspection times and retirement hours, which are measured in hours time in service and in one case in flights; if those intervals are not respected and that is detected, operators would face regulatory enforcement action based on their jurisdiction’s enforcement procedures. The AD text itself does not set out the inspection, audit or enforcement process.

Practical enforcement risk and uncertainty

Statutory and regulatory context in the AD

The AD is presented under the Commonwealth of Australia (Civil Aviation Regulations 1998), PART 39 , Schedule of Airworthiness Directives, and is issued by the Civil Aviation Safety Authority. The AD therefore sits within the regulatory architecture governing airworthiness and maintenance for Australian-registered aircraft. The text explicitly identifies this context in the header.

Interaction with manufacturer service material

The AD explicitly draws operators' attention to de Havilland Aircraft Company of Canada Service Bulletin No 2/43 (the AD's Note). The SB is treated as an informative caution that using lift struts for mooring or attaching external loads may significantly reduce fatigue life. The AD does not incorporate the SB by mandating compliance with its instructions, but it references the SB as relevant guidance. That establishes an information relationship: the AD is the mandatory regulatory requirement, the SB is manufacturer technical guidance that the AD endorses as relevant to the safety issue.

Overlap with maintenance certification and continuing airworthiness obligations

The AD's inspection, replacement and corrective action mandates intersect with operators' continuing airworthiness obligations under civil aviation law and with maintenance-certification requirements. Although the AD does not set out who signs maintenance release documents, the requirements will be implemented through normal maintenance processes and airworthiness releases under the applicable maintenance regulations and standards. The operator retains the duty of ensuring compliance with the AD as part of the aircraft's continuing airworthiness regime.

Potential interactions or conflicts the AD does not address explicitly

The AD distinguishes parts by whether they have ever been fitted for agricultural operations. This implies a dependency on historical maintenance and operational records. The AD does not, however, provide guidelines on how to treat incomplete records, disputes about historical use, or parts lacking traceability. That silence means existing recordkeeping regulations and processes (for example, rules about component tags, logbook entries, part traceability) will govern how to resolve such situations. The AD therefore interacts functionally with recordkeeping and maintenance documentation requirements external to the AD itself.

What the AD information shows

The instrument is titled AD/DHC-2/10 Amdt 8. The AD heading also states "Lift Strut and Lift Strut Attachment Fittings 3/88," which indicates the original AD or at least an initial action date in March 1988. The current printed instrument is Amendment 8; the text identifies "Amendment 8 draws the attention of operators to DHC SB 2/43..." That is the explicit amendment-related comment in the text.

What is stated and what is not

The AD text identifies that it is Amendment 8 but does not provide a full amendment chronology, amendment dates, or the substance of earlier amendments. The only amendment-specific content in the copy provided is the statement that Amendment 8 draws attention to Service Bulletin 2/43. The AD therefore documents a present amendment but does not supply the historical sequence, earlier amendment texts, or the precise changes introduced at each amendment stage.

Inferences directly supported by the text

The title and numbering show that there has been an original AD and subsequent amendments up to Amendment 8. The inclusion of "3/88" alongside the title implies that the AD issuance or the first iteration dates to March 1988. Amendment 8 altered the package at least to the extent of drawing operators' attention to the SB and likely consolidated inspection and retirement lives in the tables as printed.

Implementation note

For a complete official amendment history, including the content and dates of each amendment, operators and maintainers should consult the regulator's official AD repository or the official Federal/CAA publication where the AD amendments are indexed. The AD text as supplied does not itself provide a full amendment log.

What the AD text contains

The AD text supplied contains no litigation history. It cites the manufacturer’s fatigue testing and analysis in the background as the basis for the directive but names no judicial or administrative decisions, and lists no appeals or disputes.

Implication of absence of litigation history in the document

The absence of litigation references means there is no litigation record contained within the AD itself. The AD does not indicate whether any enforcement actions, administrative appeals, or judicial reviews have been commenced in relation to AD/DHC-2/10 or its amendments. The instrument therefore stands as a technical and regulatory requirement without any litigation annotations in the document provided.

Practical consequence for readers

If a practitioner needs to know whether the AD has been the subject of litigation or precedent decisions, that information is not in the AD and must be obtained by searching case law, administrative tribunal records, or the regulator’s enforcement and appeals records. The AD as printed does not provide that material.

Practical pitfalls and points that commonly produce compliance friction, all drawn from the document

Column A versus B depends on historical fitting, not current role. The AD states columns headed "A" apply to components which have at any time been fitted to an aircraft while engaged in agricultural operations, and column B apply to components which have never been so fitted. That means a component previously used during agricultural operations remains subject to the A thresholds even if the aircraft's role changes. Operators who fail to track historical use or misclassify components risk applying the wrong inspection and retirement schedule.
"Oldest component" rule for modified struts. For modified struts, inspection intervals and retirement lives are measured in hours time in service of the oldest component of the strut. Mixing new and used components within a strut assembly may cause earlier inspection/retirement than expected; recordkeeping is essential to compute hours properly.
"All other numbers NOT PERMITTED IN OPERATION." The compliance table contains an explicit prohibition against any part numbers not listed in the table. Operators with unlisted or non‑traceable parts must address that immediately; continued operation with unlisted parts is explicitly disallowed by the AD.
Confusing "Not required by this AD" entries. Several cells in the compliance tables say "Not required by this AD." That phrase does not mean the part is free of any maintenance obligation; in many cases the AD still mandates retirement lives for those parts or replacement at certain hours. Operators must read cells in context: a "Not required by this AD" in the inspection column may coincide with a retirement life in the retirement column, meaning inspection is not required but replacement at retirement life still is.
Bolt life expressed as hours or flights. For AN180-26/C2W497 bolts used with C2W1115-1/-2 fittings, the table sets retirement at "5000 hours or 60000 flights whichever occurs first." Operators must be prepared to track both flight cycles and hours to determine when retirement occurs. Lack of flight-count tracking systems or incomplete records will complicate compliance.
The AD requires FPI of the upper attachment fitting. Fluorescent-penetrant inspection is an NDT technique that requires equipment, consumables and trained personnel. The AD does not specify minimum qualification levels for the inspector. Operators must ensure a competent NDT provider and a documented procedure so that the inspection is accepted as compliant.

Stepwise compliance actions grounded in the AD text

Confirm applicability and inventory part numbers. Review the aircraft’s installed lift struts, wing/strut fittings and fuselage/strut fittings and match part numbers to the compliance tables in the AD. Take special note of the AD’s statement that "All models" are applicable and that "All other numbers NOT PERMITTED IN OPERATION." If any installed part number is not listed in the tables, that part is not permitted in operation under the AD and must be addressed immediately.
Establish column classification (A or B). Determine whether each component has at any time been fitted to an aircraft while engaged in agricultural operations. If yes, apply Column A inspection and retirement times; if never so fitted, apply Column B. Document the basis for each classification in the aircraft’s maintenance records. Because the AD treats "any time" past agricultural use as determinative, ensure historical records are reviewed comprehensively.
Implement fluorescent-penetrant inspection (FPI) schedules. For each upper attachment fitting of lift struts, schedule fluorescent-penetrant inspections at the times specified in compliance table, item (1). For example, for lift strut C2W1103A under Column A, the AD specifies an initial inspection at 2100 hours. For parts with initial inspections "Not required" in Column B, no initial FPI is mandated under the AD, but such parts still may be subject to retirement lives. Maintain inspection records, including the inspector’s name, procedure used, date, aircraft and component hours at inspection, and the inspection result.
Replace complete lift struts at retirement life. When the hours time in service for a lift strut reach the retirement life specified in the compliance table (item (1)), replace the complete lift strut with a new strut. For example, C2W1103A has retirement life 2480 hours under Column A and 20000 hours under Column B. If a strut has been modified, compute retirement life based on the hours of the oldest component in the strut assembly.
Replace wing/strut and fuselage/strut attachment fittings at retirement life. Follow the retirement lives specified in compliance table items (2) and (3). For example, wing/strut fittings such as C2W781 and C2W782 are given retirement lives of 30000 hours in the table. Plan parts procurement and maintenance windows to perform replacements before reaching those hours.
Regularly check bolts and alignment, and take immediate corrective action. At the times specified in compliance table, item (4) (the AD says: "Each time a new lift strut or attachment fitting is fitted and subsequently at intervals not exceeding 2500 hours"), check for looseness of the lift strut attachment bolts in their holes and for any evidence of misalignment of the strut or of the wing and fuselage strut attachment fittings. If misalignment or looseness is detected, correct the defect before further flight. Record the finding and corrective action in maintenance logs.

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
DHC-2 (Beaver) Series Aeroplanes

AD/DHC-2/10

Amdt 8

Lift Strut and Lift Strut Attachment Fittings 3/88

Applicability: All models.

Requirement: 1. Carry out a fluorescent penetrant inspection for cracking of the upper attachment fitting of each lift strut at the times specified in compliance table, item (1).

2. Replace the complete lift struts with new struts at the lives specified in compliance table, Item (1).

Note: The attention of operators is also drawn to de Havilland Aircraft Company of Canada SB No 2/43.

3. Replace the wing/strut attachment fittings and the fuselage/strut attachment fittings with new fittings at the lives specified in compliance table, Items (2) and (3).

4. Check for looseness of the lift strut attachment bolts in their holes, and for any evidence of misalignment of the strut or of the wing and fuselage strut attachment fittings at the times specified in compliance table, Item (4). Any misalignment or looseness of fit shall be corrected before further flight.

5. Replace strut upper and lower attachment bolts with new bolts, at the times specified in compliance table, Item (5).

Compliance: Retirement Lives and Inspections:

Columns headed “A” apply to components which have at any time been fitted to an aircraft while engaged in agricultural operations.

Columns headed “B” apply to components which have never been fitted to an aircraft while engaged in agricultural operations.

Inspection intervals and Retirement Lives are in hours time in service and for modified struts are in hours time in service of the oldest component of the strut.

<table cellspacing="0" cellpadding="0" style="margin-left:33.92pt; border:0.75pt solid #000000; border-collapse:collapse"><tbody><tr style="height:19.75pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:15.3pt; line-height:12.9pt"><span style="font-size:12pt">Item</span><span style="font-size:12pt; letter-spacing:-0.35pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Component</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:22.3pt; line-height:12.9pt"><span style="font-size:12pt">Part</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Number</span></p></td><td colspan="2" style="width:155.2pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:7pt; line-height:12.9pt"><span style="font-size:12pt">Component</span><span style="font-size:12pt; letter-spacing:-0.6pt"> </span><span style="font-size:12pt">Inspection</span><span style="font-size:12pt; letter-spacing:-0.6pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Times</span></p></td><td colspan="2" style="width:148.1pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:6.75pt; line-height:12.9pt"><span style="font-size:12pt">Component</span><span style="font-size:12pt; letter-spacing:-0.65pt"> </span><span style="font-size:12pt">Retirement</span><span style="font-size:12pt; letter-spacing:-0.65pt"> </span><span style="font-size:12pt; letter-spacing:-0.2pt">Life</span></p></td></tr><tr style="height:19.8pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:77.25pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.8pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">A</span></p></td><td style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.75pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">B</span></p></td><td style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.7pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.85pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">B</span></p></td></tr><tr style="height:15.95pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">1.</span><span style="font-size:12pt; letter-spacing:3.55pt"> </span><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.1pt"> Strut</span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt; text-decoration:underline">Initial</span><span style="font-size:12pt; letter-spacing:-0.3pt"> </span><span style="font-size:12pt; letter-spacing:-0.2pt">2100</span></p></td><td style="width:77.2pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.35pt; line-height:13.05pt"><span style="font-size:12pt">Not</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">required</span></p></td><td style="width:70.1pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">2480</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt">20000</span><span style="font-size:12pt; letter-spacing:-0.3pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td></tr><tr style="height:15.6pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:13.55pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:13.55pt"><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.2pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.35pt; line-height:13.55pt"><span style="font-size:12pt">by</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt">this</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">AD</span></p></td><td style="width:70.1pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:77.25pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:15.55pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.6pt; line-height:12.65pt"><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Struts</span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:12.65pt"><span style="font-size:12pt">RU</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:12.65pt"><span style="font-size:12pt; text-decoration:underline">Repeat</span><span style="font-size:12pt; letter-spacing:-0.35pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">after</span></p></td><td rowspan="6" style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td rowspan="6" style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td rowspan="6" style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:13pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.05pt"><span style="font-size:12pt">modified</span><span style="font-size:12pt; letter-spacing:-0.55pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">by</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.05pt"><span style="font-size:12pt">RL</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:12.05pt"><span style="font-size:12pt">200</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td></tr><tr style="height:13pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12pt"><span style="font-size:12pt">Mod.</span><span style="font-size:12pt; letter-spacing:-0.5pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">S.O.O.</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12pt"><span style="font-size:12pt">RLU</span><span style="font-size:12pt; letter-spacing:-0.4pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:13.05pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.05pt"><span style="font-size:12pt">2040</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt">and</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">Kit</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.05pt"><span style="font-size:12pt">RU</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:13.1pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.1pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1113</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.1pt"><span style="font-size:12pt">RL</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:15.2pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:13.15pt"><span style="font-size:12pt">RLU</span><span style="font-size:12pt; letter-spacing:2.6pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:15.95pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.6pt; line-height:13.05pt"><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Strut</span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">C2W1115-</span><span style="font-size:12pt; letter-spacing:-0.5pt">1</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt">Not</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">required</span></p></td><td style="width:77.2pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.35pt; line-height:13.05pt"><span style="font-size:12pt">Not</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">required</span></p></td><td style="width:70.1pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">25000</span><span style="font-size:12pt; letter-spacing:-0.3pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt">Not</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">required</span></p></td></tr><tr style="height:15.55pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:13.55pt"><span style="font-size:12pt">C2W1115-</span><span style="font-size:12pt; letter-spacing:-0.5pt">2</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:13.55pt"><span style="font-size:12pt">by</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt">this</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">AD</span></p></td><td style="width:77.2pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.35pt; line-height:13.55pt"><span style="font-size:12pt">by</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt">this</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">AD</span></p></td><td style="width:70.1pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:77.25pt; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:13.55pt"><span style="font-size:12pt">by</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt">this</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">AD</span></p></td></tr></tbody></table>

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

<table cellspacing="0" cellpadding="0" style="margin-left:5.62pt; border:0.75pt solid #000000; border-collapse:collapse"><tbody><tr style="height:17.75pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; font-size:12pt"><span>All</span><span style="letter-spacing:-0.2pt"> </span><span>other</span><span style="letter-spacing:-0.2pt"> </span><span style="letter-spacing:-0.1pt">numbers</span></p></td><td colspan="4" style="width:304.05pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:61.55pt; font-size:12pt"><span>NOT</span><span style="letter-spacing:-0.35pt"> </span><span>PERMITTED</span><span style="letter-spacing:-0.35pt"> </span><span>IN</span><span style="letter-spacing:-0.35pt"> </span><span style="letter-spacing:-0.1pt">OPERATION</span></p></td></tr><tr style="height:31.55pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.5pt; text-indent:-14.25pt; font-size:12pt"><span>2.</span><span style="letter-spacing:2pt"> </span><span>Wing/Strut attachment</span><span style="letter-spacing:-0.75pt"> </span><span>fitting</span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:56.45pt; font-size:12pt"><span style="letter-spacing:-0.1pt">C2W781 C2W782</span></p></td><td style="width:77.25pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td><td style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.35pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td><td style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:4.45pt; margin-left:4.75pt; text-align:center; font-size:12pt"><span>30000</span><span style="letter-spacing:-0.3pt"> </span><span style="letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td></tr><tr style="height:45.35pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.5pt; text-indent:-14.25pt; font-size:12pt"><span>3.</span><span style="letter-spacing:2pt"> </span><span>Fuselage/Strut attachment</span><span style="letter-spacing:-0.75pt"> </span><span>fitting</span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:40.05pt; font-size:12pt"><span style="letter-spacing:-0.1pt">C2FS419A C2FS5475A C2FS5487A</span></p></td><td style="width:77.25pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td><td style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.35pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td><td style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:4.45pt; margin-left:4.75pt; text-align:center; font-size:12pt"><span>30000</span><span style="letter-spacing:-0.3pt"> </span><span style="letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:10.6pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.75pt"> </span><span>required by this AD</span></p></td></tr><tr style="height:59.15pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; font-size:12pt"><span>4.</span><span style="letter-spacing:2pt"> </span><span>See</span><span style="letter-spacing:-0.1pt"> </span><span>para</span><span style="letter-spacing:-0.15pt"> </span><span style="letter-spacing:-0.25pt">4.</span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td colspan="2" style="width:155.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; font-size:12pt"><span>Each time a new lift strut or attachment</span><span style="letter-spacing:-0.45pt"> </span><span>fitting</span><span style="letter-spacing:-0.45pt"> </span><span>is</span><span style="letter-spacing:-0.45pt"> </span><span>fitted</span><span style="letter-spacing:-0.45pt"> </span><span>and subsequently at intervals not exceeding 2500 hours</span></p></td><td colspan="2" style="width:148.1pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.2pt"> </span><span style="letter-spacing:-0.1pt">applicable</span></p></td></tr><tr style="height:31.55pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; font-size:12pt"><span>5.</span><span style="letter-spacing:2pt"> </span><span>See</span><span style="letter-spacing:-0.1pt"> </span><span>para</span><span style="letter-spacing:-0.15pt"> </span><span style="letter-spacing:-0.25pt">5.</span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:48.7pt; text-indent:-0.05pt; font-size:12pt"><span style="letter-spacing:-0.1pt">AN180-26 C2W497</span></p></td><td colspan="2" style="width:155.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.2pt"> </span><span style="letter-spacing:-0.1pt">applicable</span></p></td><td colspan="2" style="width:148.1pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; font-size:12pt"><span>Each</span><span style="letter-spacing:-0.3pt"> </span><span>time</span><span style="letter-spacing:-0.3pt"> </span><span>a</span><span style="letter-spacing:-0.3pt"> </span><span>new</span><span style="letter-spacing:-0.3pt"> </span><span>lift</span><span style="letter-spacing:-0.3pt"> </span><span>strut</span><span style="letter-spacing:-0.3pt"> </span><span>or attachment fitting is fitted</span></p></td></tr><tr style="height:72.95pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.75pt"><span style="font-size:12pt">AN180-</span><span style="font-size:12pt; letter-spacing:-0.25pt">26</span></p><p class="TableParagraph" style="margin-right:7.45pt; font-size:12pt"><span>C2W497</span><span style="letter-spacing:-0.75pt"> </span><span>used</span><span style="letter-spacing:-0.75pt"> </span><span>with </span><span style="letter-spacing:-0.1pt">C2W1115-1/-2</span></p><p class="TableParagraph" style="margin-top:0.05pt; font-size:12pt"><span style="letter-spacing:-0.1pt">fittings</span></p></td><td colspan="2" style="width:155.2pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; font-size:12pt"><span>Not</span><span style="letter-spacing:-0.2pt"> </span><span style="letter-spacing:-0.1pt">applicable</span></p></td><td style="width:70.1pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.75pt"><span style="font-size:12pt">5000</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p><p class="TableParagraph" style="line-height:13.75pt"><span style="font-size:12pt">or</span><span style="font-size:12pt; letter-spacing:-0.1pt"> 60000</span></p><p class="TableParagraph" style="margin-right:6.5pt; font-size:12pt"><span style="letter-spacing:-0.1pt">flights </span><span>which</span><span style="letter-spacing:-0.75pt"> </span><span>ever occurs</span><span style="letter-spacing:-0.35pt"> </span><span style="letter-spacing:-0.1pt">first</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-right:5.95pt; margin-left:5.4pt; font-size:12pt"><span>Each time a new lift strut or</span><span style="letter-spacing:-0.75pt"> </span><span>attachment is fitted.</span></p></td></tr></tbody></table>

Background: This directive promulgates retirement lives and inspections to prevent/detect fatigue cracking in the lift strut and its attachments. These requirements are based on fatigue testing and analysis carried out by the manufacturer following a number of in-flight failures.

Amendment 8 draws the attention of operators to DHC SB 2/43, which warns against using the lift strut for mooring the aircraft, attachment of external loads, etc. Such usage may significantly reduce the fatigue life of the lift strut assembly.

1 AD/DHC-2/10 Amdt 8 - Lift Strut and Lift Strut Attachment Fittings

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

DHC-2 (Beaver) Series Aeroplanes

AD/DHC-2/10

Amdt 8

Lift Strut and Lift Strut Attachment Fittings 3/88

Applicability: All models.

Requirement: 1. Carry out a fluorescent penetrant inspection for cracking of the upper attachment fitting of each lift strut at the times specified in compliance table, item (1).

2. Replace the complete lift struts with new struts at the lives specified in compliance table, Item (1).

Note: The attention of operators is also drawn to de Havilland Aircraft Company of Canada SB No 2/43.

3. Replace the wing/strut attachment fittings and the fuselage/strut attachment fittings with new fittings at the lives specified in compliance table, Items (2) and (3).

4. Check for looseness of the lift strut attachment bolts in their holes, and for any evidence of misalignment of the strut or of the wing and fuselage strut attachment fittings at the times specified in compliance table, Item (4). Any misalignment or looseness of fit shall be corrected before further flight.

5. Replace strut upper and lower attachment bolts with new bolts, at the times specified in compliance table, Item (5).

Compliance: Retirement Lives and Inspections:

Columns headed “A” apply to components which have at any time been fitted to an aircraft while engaged in agricultural operations.

Columns headed “B” apply to components which have never been fitted to an aircraft while engaged in agricultural operations.

Inspection intervals and Retirement Lives are in hours time in service and for modified struts are in hours time in service of the oldest component of the strut.

<table cellspacing="0" cellpadding="0" style="margin-left:33.92pt; border:0.75pt solid #000000; border-collapse:collapse"><tbody><tr style="height:19.75pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:15.3pt; line-height:12.9pt"><span style="font-size:12pt">Item</span><span style="font-size:12pt; letter-spacing:-0.35pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Component</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:22.3pt; line-height:12.9pt"><span style="font-size:12pt">Part</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Number</span></p></td><td colspan="2" style="width:155.2pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:7pt; line-height:12.9pt"><span style="font-size:12pt">Component</span><span style="font-size:12pt; letter-spacing:-0.6pt"> </span><span style="font-size:12pt">Inspection</span><span style="font-size:12pt; letter-spacing:-0.6pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Times</span></p></td><td colspan="2" style="width:148.1pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:5.85pt; margin-left:6.75pt; line-height:12.9pt"><span style="font-size:12pt">Component</span><span style="font-size:12pt; letter-spacing:-0.65pt"> </span><span style="font-size:12pt">Retirement</span><span style="font-size:12pt; letter-spacing:-0.65pt"> </span><span style="font-size:12pt; letter-spacing:-0.2pt">Life</span></p></td></tr><tr style="height:19.8pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:77.25pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.8pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">A</span></p></td><td style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.75pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">B</span></p></td><td style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.7pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0.85pt; text-align:center; line-height:13.7pt"><span style="font-size:12pt">B</span></p></td></tr><tr style="height:15.95pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">1.</span><span style="font-size:12pt; letter-spacing:3.55pt"> </span><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.1pt"> Strut</span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt; text-decoration:underline">Initial</span><span style="font-size:12pt; letter-spacing:-0.3pt"> </span><span style="font-size:12pt; letter-spacing:-0.2pt">2100</span></p></td><td style="width:77.2pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.35pt; line-height:13.05pt"><span style="font-size:12pt">Not</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">required</span></p></td><td style="width:70.1pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:13.05pt"><span style="font-size:12pt">2480</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:13.05pt"><span style="font-size:12pt">20000</span><span style="font-size:12pt; letter-spacing:-0.3pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td></tr><tr style="height:15.6pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:13.55pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:13.55pt"><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td><td style="width:77.2pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.35pt; line-height:13.55pt"><span style="font-size:12pt">by</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt">this</span><span style="font-size:12pt; letter-spacing:-0.15pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">AD</span></p></td><td style="width:70.1pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:77.25pt; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:15.55pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.6pt; line-height:12.65pt"><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">Struts</span></p></td><td style="width:105.5pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; line-height:12.65pt"><span style="font-size:12pt">RU</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:5.4pt; line-height:12.65pt"><span style="font-size:12pt; text-decoration:underline">Repeat</span><span style="font-size:12pt; letter-spacing:-0.35pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">after</span></p></td><td rowspan="6" style="width:77.2pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td rowspan="6" style="width:70.1pt; border:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td rowspan="6" style="width:77.25pt; border-top:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:13pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.05pt"><span style="font-size:12pt">modified</span><span style="font-size:12pt; letter-spacing:-0.55pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">by</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.05pt"><span style="font-size:12pt">RL</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:5.4pt; line-height:12.05pt"><span style="font-size:12pt">200</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">hours</span></p></td></tr><tr style="height:13pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12pt"><span style="font-size:12pt">Mod.</span><span style="font-size:12pt; letter-spacing:-0.5pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">S.O.O.</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12pt"><span style="font-size:12pt">RLU</span><span style="font-size:12pt; letter-spacing:-0.4pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1103A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:13.05pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.05pt"><span style="font-size:12pt">2040</span><span style="font-size:12pt; letter-spacing:-0.25pt"> </span><span style="font-size:12pt">and</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:12pt; letter-spacing:-0.25pt">Kit</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.05pt"><span style="font-size:12pt">RU</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:13.1pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:19.6pt; line-height:12.1pt"><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1113</span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:12.1pt"><span style="font-size:12pt">RL</span><span style="font-size:12pt; letter-spacing:2.7pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt; font-size:9pt"><span></span></p></td></tr><tr style="height:15.2pt"><td style="width:110.95pt; border-right:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td><td style="width:105.5pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="line-height:13.15pt"><span style="font-size:12pt">RLU</span><span style="font-size:12pt; letter-spacing:2.6pt"> </span><span style="font-size:12pt; letter-spacing:-0.1pt">C2W1104A</span></p></td><td style="width:77.25pt; border-right:0.75pt solid #000000; border-left:0.75pt solid #000000; border-bottom:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-left:0pt"><span></span></p></td></tr><tr style="height:15.95pt"><td style="width:110.95pt; border-top:0.75pt solid #000000; border-right:0.75pt solid #000000; vertical-align:top"><p class="TableParagraph" style="margin-top:1.9pt; margin-left:19.6pt; line-height:13.05pt"><span style="font-size:12pt">Lift</span><span style="font-size:12pt; letter-spacing:-0.2pt"> </span><span style="font-size:1

AD/DHC-2/10 Amdt 8 - Lift Strut and Lift Strut Attachment Fittings

Plain English Summary

Deep Dive

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AD/DHC-2/10 Amdt 8 - Lift Strut and Lift Strut Attachment Fittings

Source text: opening excerpt

1 AD/DHC-2/10 Amdt 8 - Lift Strut and Lift Strut Attachment Fittings