{"id":"F2006B09168","name":"AD/DHC-8/13 - Landing Gear Control System","slug":"ad-dhc-8-13-landing-gear-control-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52908,"registerId":"commonwealth-F2006B09168-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-8/13 - Landing Gear Control System","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)  Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\n \n\nAD/DHC-8/13 Landing Gear Control System 5/90\n\nApplicability: All DHC-8-100 series aircraft S/No 3 through 119 with modification No 8/0467 incorporated, equipped with Eldee Proximity Switch electronic Control Unit (PSEU) P/N 8-410-03, 8-410-04, or 8-410-05.\n\n \n\nRequirement: Action IAW de Havilland Service Bulletin 8-32-70 revision B or later revision.\n\n \n\nNote: Notification of compliance with this AD must be given to the Authority to allow the revised operating procedures introduced by Flight Manual ‘P’ amendment to be removed.\n\n \n\nCompliance: Prior to 17 August 1990.\n\n \n\nBackground: Compliance with this AD is required in order to preclude the possibility of erroneous nose gear position indication.\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\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1895},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original targeted scope focused solely on correcting a specific technical defect (erroneous nose gear position indication) in the landing gear control system for a defined subset of DHC-8 aircraft. No evidence of scope expansion beyond the original airworthiness safety imperative."},"complexity_factors":["Narrow applicability restricted to specific aircraft serial numbers (3-119), specific modification status, and three specific part numbers","Single operative requirement incorporating external technical documentation (Service Bulletin 8-32-70) by reference","Administrative condition requiring notification of compliance to trigger removal of temporary flight manual amendments"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of certain Bombardier DHC-8-100 (serials 3–119) with a specific modification and particular PSEU units to inspect and correct the nose landing gear control system per de Havilland Service Bulletin 8-32-70 (Rev B or later).  \n\nIt fixes faulty gear position indications that could mislead pilots into landing with unsafe gear status, and mandates notifying the regulator so temporary Flight Manual procedures can be removed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-13-landing-gear-control-system","history":"/api/acts/ad-dhc-8-13-landing-gear-control-system/history","analysis":"/api/acts/ad-dhc-8-13-landing-gear-control-system/analysis","conflicts":"/api/acts/ad-dhc-8-13-landing-gear-control-system/conflicts","importantCases":"/api/acts/ad-dhc-8-13-landing-gear-control-system/important-cases","documents":"/api/acts/ad-dhc-8-13-landing-gear-control-system/documents"}}