{"id":"F2008L00386","name":"AD/J4100/1 Amdt 1 - State of Design ADs","slug":"ad-j4100-1-amdt-1-state-of-design-ads","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":72621,"registerId":"commonwealth-F2008L00386-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"BAe Systems (Operations) Jetstream 4100 ","sectionType":"division","heading":"BAe Systems (Operations) Jetstream 4100 Series Aeroplanes","content":"### BAe Systems (Operations) Jetstream 4100 Series Aeroplanes\n\n| AD/J4100/1 Amdt 1 | State of Design ADs | 4/2008 DM |\n| ----------------- | ------------------- | --------- |\n\n```html\n

Applicability:

Jetstream 4100 model aircraft, as identified in the individual Airworthiness Directive (AD) listed in Table 1 and 2.

Requirement:

1. Unless previously accomplished in accordance with the original issue of this Directive, determine the applicability of the ADs issued by the Civil Aviation Authority of the United Kingdom - CAA(UK), listed in Table 1 or the AD issued by the European Aviation Safety Agency - EASA, listed in Table 2.

2. If it is determined that an AD listed in Table 1 or 2 is applicable and has not been previously accomplished, perform the actions required by that AD.

Table 1

CAA(UK) AD

Effective Date

Title

010-03-93

16 March 1993

Fire Protection - Tests to detect defective joints in the fire extinguisher control system

006-04-93

6 April 1993

MLG Aft Doors Hinge Bracket

007-04-93

9 April 1993

Elevator Fasteners

013-05-93

19 May 1993

Main Baggage Bay Door Pressure Seal

005-06-93

10 June 1993

Bulkhead Assembly De-compression Vent at STN 510

013-08-93

13 August 1993

Flight Controls - Aileron Tab - Positive locking of hinge wire

014-08-93

24 August 1993

Doors - Passenger/Crew - Inspection of the electrical loom of the main entrance door

001-09-93

8 September 1993

Electrical Power - DC Generation - Earth post failure

\n```\n\n```html\n

003-10-93

7 October 1993

Rear Cabin Attendant Seat Debris Guard

010-10-93

13 October 1993

Electrical Power - Wing Rear Spar Harness - Introduction of additional clipping point

011-10-93

15 October 1993

Aileron Drive Quadrant Support Structure

007-11-93

30 November 1993

Rear Pressure Bulkhead Elevator Controls Mounting Structure

002-01-94

12 January 1994

Elevator Decouple Control Handle Placard

002-02-94

7 February 1994

Main Landing Gear Crashworthy Trunnion Pins

012-03-94

15 March 1994

Decompression Vents in Forward Stowages

003-06-94

9 June 1994

Flight Controls - Spoiler System - Inspection of spoiler activators and introduction of revised system flushing and bleeding system

004-06-94

13 June 1994

Main Door Handrail Assembly

007-08-94

12 August 1994

Hydraulic Power - Hydraulic Case Drain - Introduction of additional fairlead support and revised material for case drain line in engine/nacelle rear spar support

008-08-94

12 August 1994

Hydraulic Power - Spoiler System - Installation of new bleed nipples at the retract and extend connections of the actuator

005-09-94

2 September 1994

Flight Controls - Aileron and Elevator Disconnect - Travel stop migration in the control handles

006-09-94

22 September 1994

Fuselage Aerodynamic Fairing

003-11-94

22 November 1994

Engine and Fuel Control - Indicating - Installation of a new pressure switch in the fuel filter blockage system, left and right

\n```\n\n```html\n

001-02-95

16 February 1995

Navigation - Check deviation of standby compass

003-04-95

13 April 1995

Landing Gear - Landing Gear Control - Introduction of wiring changes to prevent un-commanded retraction of the landing gear

002-05-95

5 May 1995

Engine Controls -Power and Condition Controls - Installation of revised flexible control cables (left and right)

003-05-95

10 May 1995

Main Entrance Door Placards

002-06-95

6 June 1995

Seat Buckle Shackles

007-07-95

24 July 1995

Passenger Seat Base Cushions

008-07-95

24 July 1995

Type II Exit Surround Structure

003-09-95

22 September 1995

Landing Gear - Landing Gear Control - Introduction of a new landing gear control unit and revised wiring

004-09-95

28 September 1995

Rear Pressure Bulkhead Modification

004-11-95

9 November 1995

Bulkhead Assembly Decompression Panel

005-01-96

18 January 1996

Main Baggage Bay Weight Limitation Placard

006-01-96

19 January 1996

Flight Compartment Floor Structure Intercostal

007-01-96

24 January 1996

Electrical Power - DC Generation - Overheat failure of earth posts (left and right)

002-02-96

21 January 2000

Electrical Power - DC Starter Generator - Bearing failure

001-05-96

13 May 1996

Flight Controls - Aileron System - Failure of the aileron disconnect control system to disconnect

\n```\n\n```html\n

003-05-96

27 May 1996

Main Gear Shock Strut and Drag Brace Pins

004-06-96

28 June 1996

Tailplane to Fin Sealing

002-07-96

1 July 1996

Autoflight - Autopilot - Overheat failure of the flight control computer

003-07-96

1 July 1996

Autoflight - Autopilot - Installation of circuit breakers to prevent an overheat failure of the flight control computer

004-07-96

4 July 1996

Main Gear Shock Strut Replacement Bolts

005-07-96

18 July 1996

Autoflight - Elevator Trim Housing - Inspect for loose housing

005-08-96

22 August 1996

Stringer Joint Piece Part Number 14153014 at Station 130

001-12-96

13 December 1996

Fire Protection - Engine and Nacelle Fire - Extinguisher System - To find and replace defective hoses in the system

006-12-96

4 December 1996

Flight Controls - Aileron Control - Incorrect heat treatment chain links installed in the control column

004-07-97

8 July 1997

Electrical Power - Introduction of improved sealing to electrical connectors on rear pressure bulkhead area

009-07-97

25 July 1997

Additional Side Plates to Up-lock Attachments

004-08-97

9 August 1997

Main Baggage Compartment Reduced Loading Limitations

001-09-97

12 September 1997

Passenger Door Increased Diameter ‘G’ Lock Rollers

015-11-97

10 November 1997

Rear Baggage Bay Fire Extinguisher Placard

007-08-98

20 August 1998

Front Row Passenger Seats

\n```\n\n```html\n

006-09-98

11 September 1998

Elevator and Rudder Controls at Rear Pressure Bulkhead

005-04-99

5 April 1999

Fuel - Distribution - Protection of the cable assembly to the fuel standby (boost) pump (left and right)

004-05-99

11 May 1999

Temporary Placard to Prohibit Aircraft Pushback with Engines Running

007-09-99

17 September 1999

Landing Gear - Inspection and rectification of main landing gear retract actuator ramrod piston retraining nut

002-03-2000

10 March 2000

Flight Controls - Rudder Pedals - Elimination of potential restricted movement of the rudder pedals

003-03-2000

15 March 200

Hydraulic Hand Pump Mounting Brackets

006-05-2000

31 May 2000

Flying Controls - Introduction of an elevator cable tension regulator incorporating secondary locking of the regulator

001-07-2001

3 July 2001

Nose Landing Gear Life limits

001-11-2001

5 November 2001

Propeller - Reduced performance due to loss of propeller efficiency

006-11-2001

7 November 2001

Flight Controls - Trim Screw Jack Chain Replacement

007-01-2002

24 January 2002

Main Landing Gear Door Drive Trunnion Pins

006-08-2002

6 August 2002

Landing Gear - Introduction of overhaul lives for auxiliary components installed on the main and nose gear

006-06-2003

27 June 2003

Aileron Rear Spar

G-2005-0006

8 February 2005

ATA 24 - Electrical System - Modification

\n```\n\n```html\n

Table 2

EASA AD

Effective Date

Title

2007-0268

22 October 2007

Placards & Marking - Propeller Limitations Placard - Replacement

Note 1: CAA(UK) and EASA ADs issued after28 September 2003 may be accessed via the internet at the following URL:

http://ad.easa.europa.eu/

Note 2: CAA(UK) ADs issued before 28 September 2003 are listed in CAA(UK)
CAP 476 which may be accessed via the internet, by following the links at the following URL:

http://www.caa.co.uk/default.aspx?catid=1443&pagetype=90

Note 3: Australian ADs previously issued in the CAO 105 AD/J41 series are no longer effective. However these ADs will be reviewed and, if necessary, will be reissued in this series.

Compliance:

For Requirements 1 and 2 - Within 30 days after the effective date of this Directive or prior to the issue of a Certificate of Airworthiness, whichever occurs first.

This Amendment becomes effective on 20 February 2008.

Background:

The ADs listed in Table 1 and 2 of this Directive require either one time actions for which the compliance date and/or period has passed or multiple inspection/actions until a terminating action has been applied and the compliance date and/or period for the terminating action has passed. CASA has determined that these ADs may be applicable to recently registered or imported Australian aircraft. This Directive is issued to ensure all previous State of Design ADs are complied with.

CASA appreciates that, due to date of aircraft manufacture or aircraft configuration and modification status, not all the ADs listed in Table 1 and 2 will be applicable to all Jetstream 4100 model aeroplanes.

The original issue of the Directive only listed two ADs, advice from EASA has indicated that additional applicable CAA(UK) ADs were listed in CAP 476. This Amendment lists additional ADs from CAP 476.

\n```\n\n| | The original issue of this Directive became effective on 31 January 2008. |\n| --- | ------------------------------------------------------------------------- |\n\n![](image.001.png) \nDavid Punshon \nDelegate of the Civil Aviation Safety Authority\n\n13 February 2008","sortOrder":0},{"sectionNumber":"AD/J4100/1 Amdt 1","sectionType":"part","heading":"AD/J4100/1 Amdt 1","content":"## AD/J4100/1 Amdt 1","sortOrder":1},{"sectionNumber":"State of Design ADs","sectionType":"part","heading":"State of Design ADs","content":"## State of Design ADs","sortOrder":2},{"sectionNumber":"4/2008 DM","sectionType":"part","heading":"4/2008 DM","content":"## 4/2008 DM","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":5,"scope_assessment":{"changed":true,"description":"The amendment expands the set of State‑of‑Design ADs incorporated into this Directive compared with the original issue (Background: original issue listed two ADs; this Amendment lists additional ADs). The core legal requirement — that owners/operators determine applicability of the listed CAA(UK) and EASA ADs and, if applicable, carry out the actions required by those ADs — remains the same (Requirement 1–2), but more ADs must now be reviewed and potentially complied with, increasing obligations on some owners/operators."},"complexity_factors":["Large number of external ADs cited across many years in Table 1 and Table 2 — requires checking each AD for applicability and compliance status (Tables 1–2).","Applicability determination is placed on the owner/operator (Requirement 1) — needs technical judgment, historical records and configuration checks.","If an AD is applicable and not already accomplished, the owner/operator must perform the AD’s required actions (Requirement 2) — may include inspections, modifications, part replacements and specialist labour.","References to external AD databases and legacy CAP 476 for pre-2003 CAA(UK) ADs (Notes 1–2) — imposes information‑search and verification burden.","Technical scope of the listed ADs is broad (fire protection, landing gear, flight controls, electrical, hydraulics, structures, etc.) — may require multiple specialist skills, parts and downtime.","Amendment-expanded list increases coverage compared with the original issue (Background) — raises potential retrospective applicability and increases the number of ADs to review."],"plain_english_summary":"This Directive tells owners/operators of BAe Systems Jetstream 4100 series aeroplanes to check whether each UK CAA or EASA Airworthiness Directive listed in the Directive applies to their aircraft and, where an AD is applicable and not already done, to carry out the actions that AD requires. The practical consequences fall on aircraft owners/operators, who must inspect records, assess applicability against aircraft configuration, and fund and complete any required inspections or corrective work."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"The original directive (effective 31 January 2008) only listed 2 ADs. This Amendment 1 (effective 20 February 2008) dramatically expanded the scope to include 67 ADs after CASA received advice from EASA that additional CAA(UK) ADs were listed in CAP 476. The amendment transformed a narrow directive into a comprehensive 'catch-up' mechanism for all historical State of Design ADs."},"complexity_factors":["Extensive tabular data: 67 individual ADs listed across two tables with cross-references to foreign regulatory systems (CAA UK and EASA)","Conditional applicability: Operators must determine which specific ADs apply to their individual aircraft based on manufacture date, configuration, and modification status","Nested compliance logic: Must check against original directive issue, then determine applicability of each listed foreign AD, then perform actions only if not previously accomplished","External referencing: Requires operators to consult foreign databases (EASA website and CAA CAP 476) for full text of referenced ADs not reproduced in the directive","Historical layering: Amendment 1 expands scope from original 2 ADs to 67 ADs based on new information from EASA"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of BAe Jetstream 4100 aircraft in Australia to check whether their aircraft are affected by 67 historical UK/EASA safety directives (1993–2007) and to comply with any applicable outstanding measures within 30 days of the AD (or before a Certificate of Airworthiness).\n\nIt applies to Jetstream 4100 operators and maintenance organisations to ensure older or imported aircraft meet overseas safety standards addressing fire protection, flight controls, landing gear, electrical and structural risks."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads","history":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads/history","analysis":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads/analysis","conflicts":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads/conflicts","importantCases":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads/important-cases","documents":"/api/acts/ad-j4100-1-amdt-1-state-of-design-ads/documents"}}