{"id":"F2006L02987","name":"AD/B737/285 Amdt 2 - State of Design Airworthiness Directives","slug":"ad-b737-285-amdt-2-state-of-design-airworthiness-directives","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":60267,"registerId":"commonwealth-F2006L02987-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 737 Series Aeroplanes","sectionType":"division","heading":"Boeing 737 Series Aeroplanes","content":"### Boeing 737 Series Aeroplanes\n\n| AD/B737/285 Amdt 2 | State of Design Airworthiness Directives | 10/2006 |\n| ------------------ | ---------------------------------------- | ------- |\n\n```html\n

Applicability:

Boeing Model 737-100 and -200 series aeroplanes.

Requirement:

1. If not previously accomplished, determine the applicability of the United States Federal Aviation Administration (FAA) Airworthiness Directives (AD) listed in Table 1.

2. If it is determined that a FAA ADs is applicable and has not been previously accomplished, perform the actions required by that AD.

Table 1

FAA AD Number

Effective Date

Title

75-24-09

12 September 1977

Hydraulic System Fluid

79-26-02

31 December 1979

Ground Proximity Warning System Flap Position Switches

83-01-05 R2

4 August 1986

Engine Starter Operation Indication

85-02-03

1 March 1985

Runaway Stabiliser Trim

92-08-06

29 May 1992

Sperry SP177 Autopilot Flight Control Computers and Mode Control Panels

96-22-11

11 December 1996

Waterman Hydraulic Fuses

96-23-04

19 December 1996

Static Inverters

2001-24-33

16 January 2002

Auxiliary Power Unit Generator Power Feeder Wire Bundle

Compliance:

For Requirements 1 and 2 - Within 30 days after the effective date of this Amendment.

This Amendment becomes effective on 28 September 2006.

\n```\n\n| Background: | The FAA ADs listed in Table 1 of this Directive require one time actions for which the compliance date and/or period has passed. CASA has determined that these ADs may be applicable to recently registered Australian aircraft. This Directive is issued to ensure all State of Design ADs have been complied with. |\n| ----------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| | Amendment 1 introduced two additional FAA ADs (89-22-04 and 2001-16-11) to Table 1. These were entered in error as Australian ADs have been issued in relation to those ADs.This amendment introduces two additional FAA ADs (75-24-09 and 96-22-11) which were omitted from the original issue of this Directive.Amendment 1 of this AD became effective on 31 August 2006.The original issue of this AD became effective on 8 June 2006. |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n14 August 2006","sortOrder":0},{"sectionNumber":"AD/B737/285 Amdt 2","sectionType":"part","heading":"AD/B737/285 Amdt 2","content":"## AD/B737/285 Amdt 2","sortOrder":1},{"sectionNumber":"State of Design Airworthiness Directives","sectionType":"part","heading":"State of Design Airworthiness Directives","content":"## State of Design Airworthiness Directives","sortOrder":2},{"sectionNumber":"10/2006","sectionType":"part","heading":"10/2006","content":"## 10/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Yes. Amendment 2 alters the set of FAA ADs that operators must check and comply with. The background explains Amendment 1 added two FAA ADs in error (because Australian ADs already exist for them) and Amendment 2 adds two FAA ADs (75-24-09 and 96-22-11) that had been omitted from the original Directive. Those changes modify which State-of-Design ADs are captured by the Directive and therefore change its practical scope."},"complexity_factors":["Cross-reference dependency: the Directive directs operators to determine applicability of multiple FAA ADs listed in Table 1 (Table 1), requiring review of foreign-source technical requirements.","Historical ADs with lapsed compliance dates: most listed FAA ADs are one‑time actions whose original compliance windows have passed, so applicability checks rely on maintenance records and registration history.","Record-keeping and verification burden: operators must examine aircraft histories to establish whether each FAA AD has been previously accomplished, creating administrative work and possible investigative costs.","Variable technical scope: if an FAA AD is applicable, the specific corrective action varies by AD (e.g. hydraulic, electrical, avionics), producing varying direct maintenance costs.","Short compliance window: requirement to complete Requirements 1 and 2 within 30 days of the amendment’s effective date increases scheduling pressure for operators and maintainers.","Interaction with existing Australian ADs: Amendment history shows prior entry errors where Australian ADs already existed, requiring careful reconciliation to avoid duplicate or conflicting actions."],"plain_english_summary":"This Directive requires operators of Boeing 737-100 and -200 aeroplanes to check whether the FAA Airworthiness Directives listed in Table 1 apply to their aircraft and, if so, to carry out the actions those FAA ADs require. Compliance with these checks and any required actions must be done within 30 days of the amendment’s effective date. It targets recently registered Australian aircraft that may not have had older State-of-Design ADs complied with; operators bear the cost and responsibility to verify and remedy."},"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment remains within the original scope of ensuring Australian-registered Boeing 737-100/200 aircraft comply with relevant American safety directives. Amendment 2 merely corrects Table 1 by adding two FAA ADs (75-24-09 and 96-22-11) that were omitted from the original issue, and removes two ADs (89-22-04 and 2001-16-11) that were incorrectly added in Amendment 1 because Australia had already issued separate directives for those issues. The core purpose — checking compliance with outstanding American safety requirements — remains unchanged."},"complexity_factors":["Simple two-step compliance structure (check applicability, then comply if applicable)","Single table of eight referenced FAA directives with clear identifiers","No defined terms section or interpretation provisions","Straightforward 30-day compliance deadline from effective date","Limited conditional logic — only applies if FAA ADs are 'applicable and not previously accomplished'","No cross-references to other Australian legislation beyond the implicit Civil Aviation Act framework","Background section provides clear rationale for the amendment correcting previous errors"],"plain_english_summary":"Owners and operators of Boeing 737‑100 and 737‑200 aircraft registered in Australia must review whether eight specified FAA airworthiness directives apply to their planes and, if so, complete any outstanding mandated safety work. \n\nThis targets older “Classic” 737s and matters because the fixes address serious risks—hydraulic and wiring faults, warning and starter defects, autopilot and stabiliser‑trim failures—so operators have 30 days from 28 Sep 2006 to confirm compliance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives","history":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives/history","analysis":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives/analysis","conflicts":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives/conflicts","importantCases":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives/important-cases","documents":"/api/acts/ad-b737-285-amdt-2-state-of-design-airworthiness-directives/documents"}}