{"id":"F2006B05657","name":"AD/PA-30/15 - Flexible Hose Assemblies - Modification","slug":"ad-pa-30-15-flexible-hose-assemblies-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135355,"registerId":"commonwealth-F2006B05657-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-30/15 - Flexible Hose Assemblies - 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)  Piper PA-30 & 39 (Twin Comanche) Series Aeroplanes\n\n \n\nAD/PA-30/15 Flexible Hose Assemblies - Modification 12/71\n\nApplicability: All models.\n\n \n\nRequirement: Inspect engine compartment flexible hoses, ensure they are fire resistant IAW FAA Technical Standing Order C53 or C53A, Type C or D or ANO 101.22, para. 6.25.\n\n \n\nNote: This requirement does not apply to breather, vent or drain lines as the failure of these lines will not result in, or add to, a fire hazard.\n\n \n\nCompliance: Within 100 hours time in service after 31 December 1971.\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":2542},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted, single-issue airworthiness directive from 1971 addressing a specific fire-safety risk in Piper Twin Comanche aircraft. It has not expanded beyond its original scope of requiring fire-resistant hose inspections."},"complexity_factors":["Single substantive requirement with clear applicability","References to external technical standards (FAA TSO C53/C53A, ANO 101.22)","One explicit exclusion for breather/vent/drain lines","Short document length (under 200 words)"],"plain_english_summary":"Owners/operators of Piper PA‑30 and PA‑39 Twin Comanche aircraft must ensure engine‑compartment flexible hoses carrying fuel or oil are fire‑resistant (meeting FAA TSO C53/C53A Type C/D or Australian ANO 101.22 para.6.25), typically replacing standard rubber hoses. Breather/vent/drain lines are excluded. \n\nThe inspection deadline was within 100 flight hours after 31 Dec 1971; the rule prevents catastrophic engine fires from hose failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification","history":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification/history","analysis":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification/analysis","conflicts":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification/conflicts","importantCases":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification/important-cases","documents":"/api/acts/ad-pa-30-15-flexible-hose-assemblies-modification/documents"}}