{"id":"F2006B03540","name":"AD/BAe 146/93 - Main Landing Gear Side Stay Inner Link Safe Life","slug":"ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43107,"registerId":"commonwealth-F2006B03540-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BAe 146/93 - Main Landing Gear Side Stay Inner Link Safe Life","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.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.\n\nBritish Aerospace BAe 146 Series Aeroplanes\n\nAD/BAe 146/93 Main Landing Gear Side Stay Inner Link Safe\n\nLife\n\n  \n10/2001\n\nApplicability: BAe 146 Series 100 and 200 aircraft, equipped with main landing gear side stays 200884 Series as listed in Messier Dowty Service Bulletin 146-32-153.\n\nRequirement: Action in accordance with BAE Systems Service Bulletin 32-166.\n\nNote: UK CAA AD 005-05-2001 refers.\n\nCompliance: As specified in the Requirement document.\n\nThis Airworthiness Directive becomes effective on 4 October 2001.\n\nBackground: The UK CAA requires compliance because the side stay inner links listed in the referenced Messier Dowty service bulletin have incorrect safe lives quoted in the Aircraft Maintenance Manual at Issue 73.\n\n![Signature of David Villiers, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 20 August 2001\n\n![](image.001.png)\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 12 September 2001.\n\n  \n\nPage 1 of 1","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The AD changes maintenance scope by replacing the previously published safe-life limits for the listed main landing gear side stay inner links in the Aircraft Maintenance Manual with the actions and limits mandated in BAE Systems Service Bulletin 32-166 (Background; Requirement). This narrows/updates which life-limited parts and intervals apply to the affected aircraft."},"complexity_factors":["Narrow applicability: only BAe 146 Series 100/200 with specific Messier Dowty 200884-series side stays (Applicability).","Relies on an external technical document for required action and timing (Requirement: BAE Systems Service Bulletin 32-166; Compliance: as specified in the Requirement document).","Corrective purpose is limited and specific (Background: incorrect safe lives in the Aircraft Maintenance Manual).","Regulatory force is straightforward (issued under CAR 1998 subregulation 39.1(1)), leaving little administrative discretion.","Traceability burden for operators to identify affected parts per referenced Messier Dowty service bulletin."],"plain_english_summary":"This Airworthiness Directive requires operators of BAe 146 Series 100 and 200 aeroplanes fitted with Messier Dowty 200884-series main landing gear side stays to carry out the corrective actions set out in BAE Systems Service Bulletin 32-166. It replaces incorrect \"safe life\" limits previously quoted in the Aircraft Maintenance Manual and takes effect on 4 October 2001.\n\nThe directive directly affects operators and maintenance organisations (who must carry out and fund the work) and fixes maintenance and replacement timing as specified in the Requirement document (BAE SB 32-166)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope. It addresses a specific technical safety issue (incorrect safe life data for one landing gear component on one aircraft type) and does not expand beyond that purpose. The document is a standard, targeted airworthiness directive."},"complexity_factors":["Single, specific applicability (one aircraft series, one part number)","No defined terms section — uses plain technical language","No nested exceptions or conditional logic","Short document (1 page)","Single compliance pathway: follow the referenced service bulletin","Cross-reference to only one external document (BAE Systems SB 32-166) and one related UK AD"],"plain_english_summary":"This AD mandates that operators of British Aerospace BAe 146 Series 100/200 aircraft fitted with side stay inner link P/N 200884 Series comply with BAE Systems Service Bulletin 32-166 because the Aircraft Maintenance Manual contained incorrect safe‑life limits for those landing‑gear parts.  \n\nIt imports the UK CAA/manufacturer requirements into Australian law to prevent unexpected landing‑gear failure; affected operators must act. The directive took effect 4 October 2001."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life","history":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life/history","analysis":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life/analysis","conflicts":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life/conflicts","importantCases":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life/important-cases","documents":"/api/acts/ad-bae-146-93-main-landing-gear-side-stay-inner-link-safe-life/documents"}}