AD/LC40/2 Amdt 1 - Aileron and Elevator Linear Bearings

The instrument is structured around a regulatory safety intervention targeted at a specific mechanical risk: contamination of the aileron and elevator linear bearings that could cause jamming of control systems. The main concepts conveyed in the AD are applicability, prescriptive corrective steps, maintenance procedure governance, documentation of compliance, timing constraints, and an explicit alternative means of compliance.

Applicability is narrowly defined by model and serial number ranges. The AD lists exact serial number blocks for each model: LC40-550FG S/N 40001 through S/N 40079; LC41-550FG S/N 41001 through S/N 41800 and S/N 411001 through S/N 411041; LC42-550FG S/N 42001 through S/N 42569 and S/N 421001 through S/N 421006. This confines the regulatory intervention to aircraft with those serial identifiers.

Prescriptive corrective steps are grouped as five Requirements. Requirement 1 is a documentation control step: the AD mandates insertion of Appendix A from manufacturer service bulletins into the AFM Limitations section. The AD expressly permits the operator holding at least a private pilot certificate to perform that AFM amendment and requires an aircraft records entry showing compliance. Requirements 2 through 5 are maintenance tasks: access and inspect linear bearings for foreign object debris, remove any debris found, inspect control rods for scarring/damage near bearings, and repair any such damage. Each of those maintenance tasks is to be accomplished following Columbia Mandatory Service Bulletin SB-07-002 or Cessna Mandatory Service Bulletin SB-07-002D and FAA approved maintenance procedures, with the AD repeatedly stating "The appropriate maintenance manual contains these procedures."

Timing is split between immediate-before-flight actions and periodic inspections. Requirement 1, and Requirements 3 and 5, must be completed before further flight after the AD’s effective date of 19 December 2008. Requirements 2 and 4 retain the original AD’s inspection timing: initial inspection within the next 35 flight hours after 30 April 2007 unless already done, and then at intervals not to exceed 12 calendar months. The AD therefore combines an immediately binding flight-safety amendment with a recurring inspection regime that was already in place.

The AD provides an Alternative Means Of Compliance. For Requirements 2 and 4 inspections, a linear bearing access panel may be installed instead of drilling an inspection hole, or in addition to an inspection hole that has already been drilled, in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008. The AD also includes a note referencing FAA AD 2007-07-06R1 Amdt 39-15713 dated 21 October 2008, indicating cross-reference to FAA regulatory action.

The background statement in the AD ties the measures to reports of possible foreign object contamination of the linear bearings and states the safety rationale: to prevent jamming, which could result in failure and loss of control. The amendment’s stated administrative effects are to change the serial numbers of affected aircraft and to add Cessna approved data to the list of approved data for compliance.

The AD directly affects owners and operators of Columbia (formerly Lancair) LC40-550FG, LC41-550FG and LC42-550FG series aeroplanes within the serial number ranges specified (LC40 S/N 40001-40079; LC41 S/N 41001-41800 and 411001-411041; LC42 S/N 42001-42569 and 421001-421006). Those aircraft, when operated in the relevant Australian jurisdiction under the Civil Aviation Safety Authority delegate’s AD, must comply with the AFM amendment, inspections, removals, and repairs mandated.

Operators are the primary parties who pay for compliance activities. The AD requires insertion of Appendix A from a Columbia or Cessna Mandatory Service Bulletin into the AFM and an aircraft records entry documenting that action, tasks which the AD permits an operator holding at least a private pilot certificate to perform. Maintenance tasks set out in Requirements 2 through 5 must be performed following Columbia or Cessna Mandatory Service Bulletin procedures and FAA approved maintenance procedures, and the AD states that "The appropriate maintenance manual contains these procedures." Therefore licensed maintenance organisations, certificated maintenance engineers, or other persons authorised to perform FAA approved maintenance procedures will be the likely service providers to carry out the inspections, debris removal, and repairs; their labour and parts costs will be borne by the operator or owner.

The manufacturer is implicated to the extent that the AD notes the manufacturer may need to be contacted to obtain a repair scheme where damage requiring repair is found. That creates a path for manufacturer involvement in determining repair methods, and potentially for parts or support procurement.

Civil Aviation Safety Authority administration is the decision-maker issuing the AD; the document is signed by James Coyne, Delegate of CASA. The AD also references FAA approved maintenance procedures and FAA AD 2007-07-06R1, reflecting dependence on internationally recognised maintenance data and cross‑reference to FAA action.

Maintenance manual holders and engineers decide the appropriate FAA approved procedures that apply, because the AD repeatedly states "The appropriate maintenance manual contains these procedures." Where an alternative means of compliance is chosen, the operator may install a linear bearing access panel in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008; that gives operators and maintenance providers a compliance option to avoid drilling inspection holes.

Recordkeeping is an explicit duty: the AD requires an entry in the aircraft records showing compliance with Requirement 1. The AD does not specify further forms of reporting or penalties in its text.

Key duties imposed by the AD are concrete and collectively cover documentation, inspection, remediation, and repair. The duties can be summarised as follows, using the AD’s own numbering:

• Duty to amend the AFM (Requirement 1): Insert Appendix A of Columbia Mandatory Service Bulletin SB-07-002 dated 14 March 2007, or Appendix A of Cessna Mandatory Service Bulletin SB-07-002D dated 29 May 2008, into the Limitations section of the Airplane Flight Manual. The AD expressly states that the operator holding at least a private pilot certificate may carry out this AFM amendment. The AD requires that an entry be made in the aircraft records showing compliance with this requirement.

• Duty to inspect linear bearings (Requirement 2): Access and inspect aileron and elevator linear bearings on both wings for foreign object debris, following Columbia Mandatory Service Bulletin SB-07-002, or Cessna Mandatory Service Bulletin SB-07-002D, and FAA approved maintenance procedures; the AD notes the appropriate maintenance manual contains these procedures.

• Duty to remove debris (Requirement 3): Where inspections reveal debris, remove that debris following the same SBs and FAA approved maintenance procedures.

• Duty to inspect control rods (Requirement 4): Inspect aileron and elevator control rods for scarring or damage near the linear bearings, again following the same service bulletins and maintenance procedures.

• Duty to repair (Requirement 5): Repair any scarring or damage discovered in Requirement 4, in accordance with the service bulletins and FAA approved maintenance procedures; the AD states that the manufacturer may need to be contacted to obtain a repair scheme.

Rights and options embedded in the AD include an explicit Alternative Means Of Compliance for Requirements 2 and 4. Instead of drilling an inspection hole, a linear bearing access panel may be installed; if an inspection hole has already been drilled, an access panel may be installed in addition to the hole. The AD directs that this be done in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008. This gives operators a procedural alternative that may reduce structural intervention (drilling) and potentially ease repeat inspections.

The AD also confers a limited right on operators to perform the AFM amendment themselves provided they hold at least a private pilot certificate. This shifts one compliance task from maintenance organisations to operators where the operator is qualified to do so. For other maintenance tasks, the AD requires FAA approved maintenance procedures and points to the appropriate maintenance manual; these tasks will ordinarily be performed by those authorised to perform such maintenance work.

Documentation rights are asymmetric: the AD requires an entry in the aircraft records documenting compliance with Requirement 1; it does not specify a reporting channel beyond that record entry. The text places maintenance procedure selection within the scope of "FAA approved maintenance procedures" and the aircraft's maintenance manual, which delegates the selection of precise maintenance processes to the maintenance documentation and its authorised executors.

The AD text does not set out express penalties within the body of the instrument. It prescribes mandatory actions, effective dates, and required record entries, but it does not specify fines, sanctions, or enforcement mechanisms in statutory terms. The AD is signed by a CASA delegate, and it becomes effective on 19 December 2008; compliance obligations are stated as mandatory by the AD’s wording and the specified compliance timings. The absence of penalty language in the AD text does not mean there are no enforcement consequences under broader regulatory regimes, but the AD itself contains no penalty provisions or penalty amounts.

Enforcement in practice ordinarily rests with the aviation regulator or its authorised delegates. The AD’s issuance by a CASA delegate, and its cross-reference to FAA approved procedures, indicates that compliance will be assessed against the AD’s requirements and the referenced service bulletins and maintenance procedures. The AD explicitly requires an aircraft records entry for Requirement 1, which creates a documentary checkpoint that inspectors or auditors can examine. The AD specifies timing constraints (for example, Requirement 1 must be done "Before further flight after the effective date of this AD"; Requirement 2’s initial and recurrent timing "within the next 35 flight hours after 30 April 2007" and "at intervals not to exceed 12 calendar months") that create measurable compliance deadlines.

The AD does not describe administrative processes for demonstrating alternative means of compliance beyond prescribing the acceptable alternative (installation of a linear bearing access panel per Cessna SB-07-018). The AD also refers to FAA AD 2007-07-06R1, but does not prescribe inter-agency enforcement cooperation. The instrument’s focus is prescriptive safety measures rather than procedural enforcement mechanics.

Because the AD requires FAA approved maintenance procedures and references service bulletins, compliance assessments will involve checking whether the inspections, removals, repairs, and AFM amendment have been completed in accordance with the prescribed documents and within the time windows stated. The AD’s instruction to make an entry in the aircraft records creates a primary record that regulators are likely to examine, but the AD text itself does not outline the consequences of missing or false record entries.

The AD explicitly references and incorporates external technical material and another jurisdiction’s AD. It requires compliance "following Columbia Mandatory Service Bulletin SB-07-002, or Cessna Mandatory Service Bulletin SB-07-002D, and FAA approved maintenance procedures," and it notes that the "appropriate maintenance manual contains these procedures." It also contains a note that "FAA AD 2007-07-06R1 Amdt 39-15713 dated 21 October 2008 refers." The AD therefore directs operators and maintainers to follow manufacturer service bulletins and FAA approved procedures as the technical basis for compliance.

This AD operates as an instrument issued under CASA delegate authority; the AD’s prescription will be enforced in the Australian regulatory environment through CASA processes and inspection regimes. The AD’s cross-reference to FAA material creates a dependency on FAA-approved procedures for the technical aspects of inspection and repair. The instrument also adds Cessna approved data to the approved data set detailed in the requirements, which explicitly expands the authoritative technical sources beyond the Columbia service bulletin to include Cessna service bulletin appendices.

For alternative compliance, the AD permits installation of a linear bearing access panel "in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008." That is a crossover compliance path whereby a Cessna bulletin provides the permitted modification method for Columbia/Lancair aircraft covered by this AD.

The AD itself does not purport to amend statutes, aviation certificates, or airworthiness certificates, nor does it set out how it modifies existing regulatory instruments. It does, however, amend the earlier AD/LC40/2 by changing serial numbers and adding approved data, and it states that the original issue of the AD became effective on 30 April 2007. Thus the AD functions as a regulatory update within the administrative framework for continuing airworthiness, rather than as a primary statute.

The text does not reference Australian civil penalty provisions, certification conditions, or the processes for approval of alternative methods of compliance beyond the specified access panel option. The AD’s reliance on FAA approved maintenance procedures means that compliance must be consistent with those procedures; how those procedures map onto Australian maintenance regulation and licensing is governed by the existing maintenance manual and organisational approvals but is not detailed in the AD text.

The AD is labelled AD/LC40/2 Amdt 1, indicating it is the first amendment to the original AD/LC40/2. The AD notes that "This Amendment becomes effective on 19 December 2008" and that the original issue of this AD became effective on 30 April 2007. The amendment explicitly states the changes implemented by the amendment: it changes the serial number of the aircraft affected by the AD and adds Cessna approved data to the approved data detailed in the various requirements.

Key amendment milestones evident in the AD text are:

• Original AD issue effective 30 April 2007. The AD states the original issue of AD/LC40/2 became effective on that date. The original AD established an inspection regime including initial inspection within 35 flight hours after 30 April 2007 and recurring 12‑month intervals for the relevant inspections.
• Amendment AD/LC40/2 Amdt 1 dated 15 December 2008 and made effective 19 December 2008. The AD text is dated 15 December 2008 and signed by James Coyne, Delegate of CASA, and states the amendment becomes effective on 19 December 2008.

Substantive content changed by the amendment is described in the Background paragraph: the amendment changes the serial numbers of affected aircraft and adds Cessna approved data to the approved data detailed in the requirements. The AD therefore widens the set of approved technical references an operator may rely on for compliance, and it adjusts the applicability scope through serial number edits.

The AD also notes a related FAA amendment: "Note: FAA AD 2007-07-06R1 Amdt 39-15713 dated 21 October 2008 refers." That indicates parallel action or reference to a revised FAA AD, and the AD adds Cessna data approved by Cessna to the list of acceptable compliance documents, aligning the Australian AD with those international service bulletins and FAA updates.

No further amendments or subsequent changes are present in the supplied text. The AD text itself provides the serial numbers, the required service bulletins and FAA approved maintenance procedures, the Alternative Means Of Compliance, and the compliance timing, as the content of Amdt 1.

The supplied AD text contains no litigation history. It names no judicial or administrative decisions, and it does not record appeals, stays, or legal challenges. The AD does record an FAA AD reference, but that is a technical cross-reference rather than litigation. The text does not identify any disputes, legal proceedings, or case law concerning the AD or its requirements. The AD is an administrative directive signed by a CASA delegate and dated 15 December 2008; there is no indication in the document of any litigation having arisen in relation to the original AD or this amendment.

Because the AD itself does not include or summarise any appeals process or history, practitioners seeking litigation history would need to consult external records, regulatory adjudication files, or court databases; none of that material is present in the supplied source. Within the four corners of the AD text the litigation history field is blank.

Several practical pitfalls and traps for operators and maintainers arise from the AD’s wording and structure, as stated in the source text.

• Narrow serial-number applicability: The AD applies only to specifically enumerated serial number ranges. Operators must confirm serial numbers carefully against the Applicability line ("LC40-550FG S/N 40001 through S/N 40079; LC41-550FG S/N 41001 through S/N 41800 and S/N 411001 through S/N 411041; LC42-550FG S/N 42001 through S/N 42569 and S/N 421001 through S/N 421006"). Misreading or mistaking a serial number could lead to either unnecessary work or non‑compliance. The AD’s amendment changes serial numbers; operators should ensure they are working from the amended list.

• AFM amendment permissibility and recordkeeping: The AD permits the operator holding at least a private pilot certificate to perform the AFM amendment required by Requirement 1. That is an unusual allocation of task to operators rather than maintenance organisations, which may cause confusion about who signs the record entry. The AD requires making "an entry in the aircraft records showing compliance with this Requirement of this AD." Operators must ensure the record entry meets recordkeeping standards even if the operator performs the AFM amendment personally.

• Timing interplay between original AD and amendment: Requirements 2 and 4 retain the original AD’s initial inspection window ("Initially within the next 35 flight hours after 30 April 2007") and recurring interval ("thereafter at intervals not to exceed 12 calendar months"). The AD amendment is effective 19 December 2008, but the initial inspection window refers back to 30 April 2007. Operators must check whether initial inspections were already performed under the original AD, and must comply with the recurring inspection schedule, not assume the 2008 amendment resets initial timing.

• Scope of maintenance procedures: The AD repeatedly states that inspections, debris removal and repairs are to be carried out "following Columbia Mandatory Service Bulletin SB-07-002, or Cessna Mandatory Service Bulletin SB-07-002D, and FAA approved maintenance procedures" and that "The appropriate maintenance manual contains these procedures." Operators must therefore have access to the referenced service bulletins and the applicable maintenance manual pages. Lack of those documents or ambiguity in them could delay compliance.

• Repair scheme dependence on manufacturer: Requirement 5 states "The manufacturer may need to be contacted to obtain a repair scheme." If a repair is required, real‑world timelines may be affected by manufacturer responsiveness, parts availability or bespoke repair instructions. Operators should not assume all repairs can be handled solely from the existing maintenance manual.

• Alternative compliance details: The AD allows installing a linear bearing access panel instead of drilling an inspection hole, or in addition to a previously drilled hole, but specifies that this must be in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008. If an operator elects the access panel path, they must follow the Cessna SB precisely; deviations may undermine any claim of having used the AD’s alternative compliance route.

• Lack of stated penalties: The AD contains no penalty provisions. That absence could tempt operators to deprioritise compliance, but the AD nonetheless contains strict "before further flight" requirements and recurring inspection windows; operationally, non‑compliant aircraft may be grounded or face regulatory action under broader aviation safety rules even though the AD does not itself specify penalties.

• Document coordination across jurisdictions: The AD references FAA approved procedures and an FAA AD. Where maintenance or parts sourcing is done against FAA documentation, operators should ensure that those procedures are accepted for use under the applicable Australian maintenance approvals for the aircraft. The AD’s text directs compliance to FAA approved procedures, but does not narrate the administrative acceptance process in Australia.

Follow these concrete steps, derived verbatim from the AD text, to achieve documented compliance:

1. Confirm applicability. Check the aircraft model and serial number against the AD’s Applicability list: LC40-550FG S/N 40001-40079; LC41-550FG S/N 41001-41800 and 411001-411041; LC42-550FG S/N 42001-42569 and 421001-421006. Ensure the aircraft is within those serial ranges before applying the AD.

2. AFM amendment (Requirement 1). Before further flight after the AD’s effective date (19 December 2008), insert Appendix A of Columbia Mandatory Service Bulletin SB-07-002 dated 14 March 2007, or Appendix A of Cessna Mandatory Service Bulletin SB-07-002D dated 29 May 2008, into the Limitations section of the AFM. The AD permits the operator holding at least a private pilot certificate to perform this amendment. Make an entry in the aircraft records showing compliance with Requirement 1.

3. Inspect linear bearings for foreign object debris (Requirement 2). Perform access and inspection of the aileron and elevator linear bearings on both wings for foreign object debris. Follow Columbia Mandatory Service Bulletin SB-07-002 or Cessna Mandatory Service Bulletin SB-07-002D and FAA approved maintenance procedures; consult the appropriate maintenance manual for the exact procedures. If the initial inspection had not already been performed under the original AD, the initial inspection timing was "within the next 35 flight hours after 30 April 2007"; thereafter carry out inspections at intervals not to exceed 12 calendar months, as stated in the AD.

4. Remove debris (Requirement 3). If any foreign object debris is found during the inspections, remove it before further flight after the effective date of this AD, following the referenced service bulletins and FAA approved maintenance procedures, and the appropriate maintenance manual.

5. Inspect control rods (Requirement 4). Inspect the aileron and elevator control rods for scarring or damage near the linear bearings, in accordance with Columbia SB-07-002 or Cessna SB-07-002D and FAA approved maintenance procedures. The initial timing and recurring intervals mirror Requirement 2, per the AD: initial inspection within the 35 flight-hour window after 30 April 2007 unless already done, thereafter every 12 calendar months or sooner as applicable.

6. Repair damage (Requirement 5). Repair any scarring or damage found in Requirement 4 before further flight after the effective date of this AD, following Columbia SB-07-002 or Cessna SB-07-002D and FAA approved maintenance procedures. If the repair required is not covered by published procedures, contact the manufacturer to obtain a repair scheme, as the AD explicitly notes the manufacturer may need to be contacted.

7. Consider the Alternative Means Of Compliance for inspections. For Requirements 2 and 4, instead of drilling an inspection hole, install a linear bearing access panel in accordance with Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008. If an inspection hole was previously drilled, installation of the access panel may be done in addition to the hole. Follow SB-07-018 exactly for this alternative method.

8. Recordkeeping. Make the required entry in the aircraft records for Requirement 1. Maintain records of inspections, debris removal, and repairs performed in accordance with the maintenance manual and regulatory recordkeeping practices. While the AD only explicitly mandates the Requirement 1 record entry, documenting the inspection and repair steps provides an auditable trail against the AD’s prescriptive steps and the FAA approved procedures referenced.

9. Retain the correct technical references. Keep a copy of Columbia Mandatory Service Bulletin SB-07-002 dated 14 March 2007, Cessna Mandatory Service Bulletin SB-07-002D dated 29 May 2008, and Cessna Mandatory Service Bulletin SB-07-018 dated 29 May 2008 (if using the alternative compliance option), together with the applicable FAA approved maintenance procedures and the aircraft’s maintenance manual. The AD repeatedly directs that the appropriate maintenance manual contains the procedures to be followed.

10. Verify status against the AD’s effective date and original AD timing. Note that Requirements 3 and 5 must be completed before further flight after the effective date of this AD (19 December 2008), and that Requirements 2 and 4 reference initial inspection windows tied to 30 April 2007. Confirm whether initial inspections were already undertaken and ensure ongoing compliance with the 12-month inspection interval thereafter.

By following the AD’s enumerated requirements, relying on the named service bulletins and FAA approved maintenance procedures, and keeping the required records, operators will implement the procedural steps the AD prescribes to reduce the risk of linear bearing contamination and potential control system jamming.