{"id":"F2006B05780","name":"AD/PA-31/75 - King KFC 300 Autopilot Yaw Bridle Cable Clamps - Replacement","slug":"ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135655,"registerId":"commonwealth-F2006B05780-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/75 - King KFC 300 Autopilot Yaw Bridle Cable Clamps - Replacement","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)  Piper PA-31 Series Aeroplanes\n\n \n\nAD/PA-31/75 King KFC 300 Autopilot Yaw Bridle\n\nCable Clamps - Replacement\n\n\n1/79\n\n \n\nApplicability: Models PA31T with S/Nos. 31T-7820082 and below, fitted with KFC 300 automatic pilots.\n\n \n\nDocument: King Installation Bulletin 129.\n\n \n\nCompliance: Within 100 hours time in service after 31 January 1979.\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\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":1982},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive remains tightly scoped to its original purpose: mandating a specific part replacement on a narrowly defined category of aircraft equipment. No evidence of scope creep or expansion beyond the initial safety defect rectification."},"complexity_factors":["Single operative requirement with no exceptions or conditional clauses","No definitions section or interpretation provisions","Simple applicability test based on aircraft model and serial number range","Single compliance metric (100 hours time in service)","Only one external reference (a technical installation bulletin)"],"plain_english_summary":"**What this does:** This directive mandates the replacement of specific cable clamps (called \"Yaw Bridle Cable Clamps\") on aircraft autopilot systems to prevent safety failures.\n\n**Who it affects:** Owners and operators of Piper PA-31T aircraft with serial numbers 31T-7820082 and below that are equipped with King KFC 300 autopilot systems.\n\n**What you must do:** Replace the cable clamps according to the technical instructions in King Installation Bulletin 129. This maintenance must be completed within 100 hours of flight time after 31 January 1979.\n\n**Why it matters:** Faulty cable clamps could compromise the autopilot system's performance, potentially creating flight safety risks."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement","history":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement/history","analysis":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement/analysis","conflicts":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement/conflicts","importantCases":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement/important-cases","documents":"/api/acts/ad-pa-31-75-king-kfc-300-autopilot-yaw-bridle-cable-clamps-replacement/documents"}}