{"id":"F2006B08370","name":"AD/CESSNA 400/87 - Aileron Yoke Mounting Bracket Attachment - Inspection and Modification","slug":"ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115787,"registerId":"commonwealth-F2006B08370-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 400/87 - Aileron Yoke Mounting Bracket Attachment - Inspection and Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Cessna 400 Series Aeroplanes\n\n \n\nAD/CESSNA 400/87 Aileron Yoke Mounting Bracket\n\nAttachment - Inspection and Modification\n\n\n4/83\n\n \n\nApplicability: All models 402C with S/Nos. 402C0292 to 402C0528) All models 414A with S/Nos. 414A0498 to 414A0680) ** All models 421C with S/Nos. 421C0872 to 421C1115)\n\n** Document No. 1 refers\n\n \n\nAll models 425 with S/Nos. 425-0002 to 425-0118 excepting S/Nos. 425-0107 and\n\n425-0112 (Document No. 2 refers).\n\n \n\nDocument: 1. Cessna Customer Care S.I.L. ME82-57.\n\n \n\n2. Cessna Customer Care S.I.L. PJ82-42. Compliance: Within 200 hours time in service after 30 April, 1983.\n\nBackground: Enlargement and elongation of the aileron yoke assembly attach holes and corresponding holes has been detected.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2571},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive establishes the original regulatory mandate. The scope is tightly constrained to specific serial number ranges where the manufacturing defect was detected, representing a targeted safety intervention for identified airframes rather than an expansion from a broader original purpose."},"complexity_factors":["Relies entirely on external technical documents (Cessna Service Information Letters ME82-57 and PJ82-42) for actual inspection and modification procedures","Applicability determined by specific serial number ranges across four different aircraft models, requiring careful logbook verification","Split documentation requirements (two different SIL references for different model groups)","Time-in-service compliance calculation required from a fixed historical date"],"plain_english_summary":"This AD mandates owners/operators of specific serial-numbered Cessna 402C, 414A, 421C, and 425 aircraft to inspect and modify the aileron-yoke mounting bracket where elongated/enlarged holes can cause loss of flight control. Compliance must follow Cessna Service Information Letter ME82-57 (402C/414A/421C) or PJ82-42 (425) within 200 flight hours after April 30, 1983. It’s a mandatory safety requirement to prevent possible in-flight control failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification","history":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification/history","analysis":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification/analysis","conflicts":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification/important-cases","documents":"/api/acts/ad-cessna-400-87-aileron-yoke-mounting-bracket-attachment-inspection-and-modification/documents"}}