{"id":"F2006B10941","name":"AD/JETSTREAM/70 - Passenger/Crew Door - Internal Door Mounting Platform","slug":"ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56493,"registerId":"commonwealth-F2006B10941-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JETSTREAM/70 - Passenger/Crew Door - Internal Door Mounting Platform","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)  \nBritish Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\nAD/JETSTREAM/70 Passenger/Crew Door \\- Internal\n\nDoor Mounting Platform\n\n  \n11/94\n\nApplicability: All HP137 Mk1, Jetstream series 200, Jetstream series 3100 and Jetstream series 3200 aircraft.\n\nRequirement: Carry out a close visual inspection of the passenger/crew door mounting platform in accordance with Part 1 of British Aerospace SB 52-A-JA 930901 Revision 1.\n\nNote: CAA (UK) AD 009-12-93 refers.\n\nCompliance: Initial inspection before 1800 flying hours or, for aircraft which have exceeded 1200 flying hours as of 13 October 1994, within 600 flying hours from 13 October 1994 or before 13 January 1995, whichever occurs first.\n\nRepeat inspections at intervals not exceeding 1800 flying hours until modified in accordance with Part 2 of British Aerospace SB 52-A-JA 930901 Revision 1.\n\nBackground: Cracks have been found on the passenger/crew door internal handle mounting platform structure. Failure of the mounting platform could affect the operation of the passenger/crew door mechanism.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with narrow, specific scope. It addresses a single identified safety defect in a specific aircraft type. No scope creep is evident — the directive precisely targets the cracked door mounting platform issue it was designed to address."},"complexity_factors":["Single, specific technical requirement (visual inspection per service bulletin)","Only 4 aircraft models covered with clear applicability statement","Simple compliance timeline with two alternative triggers (flight hours or calendar date)","No defined terms section, no cross-references to other legislation beyond one UK authority reference","Straightforward conditional logic: inspect until modified, then stop"],"plain_english_summary":"Owners and operators of HP137 Mk1 and Jetstream 200/3100/3200 aircraft must carry out visual inspections of the internal mounting platform that secures the passenger/crew door handle. Cracks have been found that could cause door-mechanism failure, risking evacuation and cabin pressure. \n\nThe first inspection is due before 1,800 flight hours (or within 600 flight hours of 13 Oct 1994, whichever is sooner), and must be repeated every 1,800 flight hours until a permanent modification is fitted."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive's scope matches the safety objective stated in the background: inspect the passenger/crew door internal mounting platform on the listed aircraft to detect cracks that could affect door operation. It imposes inspection, repeat inspection intervals, and a condition (modification per Part 2 of the service bulletin) for ending repeats. No change of scope from that stated intent is apparent in the text; obligations apply to operators of the specified types and carry associated compliance cost and scheduling requirements (Applicability, Requirement, Compliance, Background)."},"complexity_factors":["References an external service bulletin (British Aerospace SB 52-A-JA 930901 Rev 1) for the inspection procedure, requiring operators to obtain and follow that document (Requirement).","Applies across multiple Jetstream/HP137 model variants, so fleet managers must identify affected aircraft (Applicability).","Initial compliance timing varies by accumulated flying hours as of 13 October 1994, requiring operators to calculate deadlines against aircraft-specific hours (Compliance).","Mandates repeat inspections at fixed flying‑hour intervals until a modification is performed per Part 2 of the service bulletin, creating an ongoing tracking obligation (Compliance/Requirement).","Safety-critical context (door mounting platform) increases operational and scheduling impact and may require corrective work if cracks are found (Background)."],"plain_english_summary":"Requires operators of specified HP137/Jetstream 200/3100/3200 aircraft to carry out a close visual inspection of the passenger/crew door internal handle mounting platform per British Aerospace SB 52‑A‑JA 930901 Rev 1, initially within set flying‑hour windows and then every 1800 flying hours until the platform is modified. The directive responds to discovered cracks that could impair door operation; operators must bear inspection and corrective costs and schedule work to meet the stated compliance deadlines."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform","history":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform/history","analysis":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform/analysis","conflicts":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform/conflicts","importantCases":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform/important-cases","documents":"/api/acts/ad-jetstream-70-passenger-crew-door-internal-door-mounting-platform/documents"}}