{"id":"F2006B05875","name":"AD/PA-32/8 Amdt 1 - Engine Air Inlet Duct - Inspection","slug":"ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135923,"registerId":"commonwealth-F2006B05875-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/8 Amdt 1 - Engine Air Inlet Duct - Inspection","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)  \nPiper PA-32 (Cherokee Six) Series Aeroplanes\n\nAD/PA-32/8\n\nAmdt 1\n\n  \nEngine Air Inlet Duct \\- Inspection 12/67\n\nApplicability: Model PA32-300 with S/Nos. 32-15, 32-40000 to 32-40399 which have not been modified in accordance with Piper SB No. 260.\n\nRequirement: 1\\. Inspect the flexible duct Piper P/N 457599 between the engine air box and engine throttle body assembly for loose and/or collapsed wire reinforcing coils inside the duct. Each end of the reinforcing wire must be secured under th duct end clamps.\n\n2. If loose and/or collapsed wire reinforcing coils are found, remove the duct from service and install a modified duct in accordance with Piper SB No. 260.\n\nNote: Inspection may be accomplished by removal of the entire engine cowling and the intake air hose cover P/No. 68047.\n\nCompliance: Within 10 hours time in service after 8 November 1967 and there- after at intervals not exceeding 50 hours time in service.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a narrow, targeted safety directive focused on a specific mechanical defect in a limited population of aircraft. It has not expanded beyond its original purpose of addressing the air inlet duct integrity issue."},"complexity_factors":["Single, specific aircraft model and limited serial number range","Only 2 substantive requirements (inspect and replace if necessary)","One defined part number (P/N 457599) and one service bulletin reference","Simple compliance schedule (10 hours initially, then every 50 hours)","No nested exceptions, conditional logic, or cross-references to other legislation","Total length is approximately 150 words"],"plain_english_summary":"This is an **Airworthiness Directive** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It applies to specific Piper PA-32 Cherokee Six aircraft (model PA32-300 with serial numbers 32-15 and 32-40000 through 32-40399) that haven't been modified according to a specific Piper service bulletin.\n\n**What it requires:**\n- **Inspection:** Owners/operators must check a specific flexible air duct (part number 457599) that runs between the engine air box and throttle body. The check looks for loose or collapsed wire reinforcing coils inside the duct. Both ends of the reinforcing wire must be secured under the duct clamps.\n- **Replacement:** If any damage is found, the duct must be removed and replaced with a modified version per Piper's Service Bulletin No. 260.\n\n**When it must be done:**\n- First inspection within 10 flight hours after 8 November 1967\n- Then repeated every 50 flight hours thereafter\n\n**Why it matters:**\nA failed or collapsed air inlet duct can restrict airflow to the engine, potentially causing power loss or engine failure in flight. This directive prevents that by catching deterioration early."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The provided text sets a specific scope: it applies to PA‑32‑300 aeroplanes with serial numbers 32‑15 and 32‑40000 to 32‑40399 that have not been modified per Piper SB No. 260, and requires inspection and replacement rules with stated compliance intervals (Applicability; Requirement 1–2; Compliance). The document itself does not include information showing a change from an earlier or original scope, so no change from original intent is identifiable within the supplied text."},"complexity_factors":["Narrow applicability limited to a single model and a specific serial-number range (Applicability)","Specific part identification (flexible duct Piper P/N 457599) and specific defect criteria (loose and/or collapsed wire reinforcing coils) (Requirement 1)","Mandated remedial action that refers to an external document for the approved modification method (Piper SB No. 260) (Requirement 2)","Short and recurring mandatory compliance intervals (initial within 10 hours after a fixed date; thereafter every 50 hours) (Compliance)","Prescribed access method (removal of cowling and intake air hose cover P/No. 68047) which affects labour/time estimates (Note)"],"plain_english_summary":"This AD requires recurring physical inspections of the flexible engine air‑inlet duct (P/N 457599) on specified Piper PA‑32‑300 serials to check for loose or collapsed internal wire coils and to confirm each wire end is secured. Defective ducts must be removed and replaced per Piper SB No. 260. First inspection is within 10 hours TIS after the directive date and then every 50 hours; owners/operators bear inspection and replacement costs. Access may require cowling and intake cover removal."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection","history":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection/history","analysis":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection/analysis","conflicts":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection/conflicts","importantCases":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection/important-cases","documents":"/api/acts/ad-pa-32-8-amdt-1-engine-air-inlet-duct-inspection/documents"}}