{"id":"F2006B02849","name":"AD/B737/147 - Cabin Door Handle Mounting Hub","slug":"ad-b737-147-cabin-door-handle-mounting-hub","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42191,"registerId":"commonwealth-F2006B02849-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)\n\n![](image.002.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.","sortOrder":0},{"sectionNumber":"AD/B737/147 Cabin Door Handle Mounting H","sectionType":"part","heading":"AD/B737/147 Cabin Door Handle Mounting Hub 11/2000","content":"# AD/B737/147 Cabin Door Handle Mounting Hub 11/2000\n\nApplicability: Model 737-200, \\-300, \\-400, and \\-500 series aircraft; as listed in Boeing Service Bulletin 737-25-1322 Revision 2.\n\nRequirement: Replace existing door handle mounting hub assemblies in the forward and aft entry doors, forward galley door, and aft service door, with new improved hub assemblies in accordance with Boeing Service Bulletin (SB) 737-25-1322 Revision 2, dated 19 February 1998.\n\nNote 1: Replacements accomplished prior to the effective date of this Directive in accordance with SB 737-25-1322 or SB 737-25-1322 Revision 1, are acceptable for compliance with the Requirement of this Directive.\n\nNote 2: FAA AD 2000-14-13 Amdt 39-11823 refers.\n\nCompliance: Before 2 May 2002, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 2 November 2000.\n\nBackground: The FAA received reports of cracked or broken door handle mounting hub assemblies for the interior door handles on the cabin doors. A damaged mounting hub could result in the interior door handle breaking off while the door is being opened, and in an emergency situation, could impede evacuation of the aircraft.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.003.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 13 September 2000\n\n![](image.002.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 4 October 2000.","sortOrder":1}],"analysis":{"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"},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The Directive implements the corrective action described in its Background and follows Boeing Service Bulletin 737-25-1322 Rev 2 for listed 737 series. It accepts prior compliance under earlier SB revisions (Note 1) and cross-references FAA AD 2000-14-13 (Note 2). It does not expand the set of affected aircraft or introduce additional measures beyond the replacement requirement."},"complexity_factors":["Targeted applicability to specific Boeing 737 series listed in the Boeing Service Bulletin (Applicability)","Single remedial action: replace door handle mounting hub assemblies (Requirement)","Mandatory compliance deadline establishes a fixed implementation window (Compliance)","Mandatory action must follow an external technical document (Boeing SB 737-25-1322 Rev 2) (Requirement)","Accepts prior work done under earlier SB revisions (Note 1) which slightly relaxes rework needs","Reference to an equivalent FAA AD creates regulatory cross‑reference/consistency considerations (Note 2)","Multiple door locations per aircraft increase per-aircraft labour/parts counts (Requirement)","Enforcement and issuance by the CASA delegate centralises regulatory decision (front matter)"],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 737-200/300/400/500 series aircraft (as listed in Boeing Service Bulletin 737-25-1322 Rev 2) to replace the interior cabin door handle mounting hubs with improved assemblies, following the Boeing service instructions. CASA mandates the change to address reports of cracked or broken hubs that could cause handles to fail and impede evacuation. Operators must arrange and pay for the replacements and comply by the date specified in the Directive."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a tightly scoped, single-purpose safety mandate. The scope remains precisely limited to the specific mechanical defect (door handle mounting hub failure) on the specified aircraft models. There is no evidence of scope creep or expansion beyond the original safety purpose."},"complexity_factors":["Very short document (approximately 250 words)","Only 4 defined elements: specific aircraft models, specific doors, specific Boeing service bulletin, and single compliance deadline","No nested exceptions or conditional logic beyond the standard 'unless already accomplished' clause","Single straightforward requirement with one acceptable alternative compliance path (Note 1)","No cross-references to other legislation beyond a single reference to the enabling regulation (CAR 1998 subregulation 39.1(1)) and an informational note about the corresponding FAA directive"],"plain_english_summary":"The Civil Aviation Safety Authority has ordered operators of certain Boeing 737-200/300/400/500 series to replace cracked interior door-handle mounting hubs with improved parts to prevent handles failing during emergencies. Affected aircraft are those listed in Boeing Service Bulletin 737-25-1322; work must follow Revision 2 and be done by 2 May 2002 (earlier compliant repairs under prior revisions are accepted)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub","history":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub/history","analysis":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub/analysis","conflicts":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub/conflicts","importantCases":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub/important-cases","documents":"/api/acts/ad-b737-147-cabin-door-handle-mounting-hub/documents"}}