{"id":"F2009L00463","name":"AD/PA-36/8 Amdt 1 - Forward and Aft Wing Attachment Fittings - Inspection and Modification","slug":"ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":77010,"registerId":"commonwealth-F2009L00463-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-36 (Pawnee Brave) Series Aeropl","sectionType":"division","heading":"Piper PA-36 (Pawnee Brave) Series Aeroplanes","content":"### Piper PA-36 (Pawnee Brave) Series Aeroplanes\n\n| AD/PA-36/8 Amdt 1 | Forward and Aft Wing AttachmentFittings - Inspection and Modification | 3/2009 |\n| ----------------- | --------------------------------------------------------------------- | ------ |\n\n| Applicability: | All models with serial numbers 36-736003 to 36-7560044 except aircraft incorporating Piper Kit Part Number 760 933.                                                                                                |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Inspect, and alter if necessary, the forward and/or aft wing attachment fittings in accordance with the instructions section of Piper SB No. 471A.Note: USA AD 77-02-06 (amdt 39-2816) refers.                     |\n| Compliance:    | At intervals not exceeding 500 hours time in service.Compliance with the original issue of this AD constitutes compliance with this Amendment.                                                                     |\n|                | This Amendment becomes effective on 12 March 2009.                                                                                                                                                                 |\n| Background:    | The original issue of this AD in 1975 specified compliance with Piper SB No. 471.Amendment 1 excludes aircraft incorporating Piper Kit Part Number 760 933, nominates SB No. 471A, and identifies USA AD 77-02-06. |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n8 January 2009","sortOrder":0},{"sectionNumber":"AD/PA-36/8 Amdt 1","sectionType":"part","heading":"AD/PA-36/8 Amdt 1","content":"## AD/PA-36/8 Amdt 1","sortOrder":1},{"sectionNumber":"Forward and Aft Wing AttachmentFittings ","sectionType":"part","heading":"Forward and Aft Wing AttachmentFittings - Inspection and Modification","content":"## Forward and Aft Wing Attachment  \nFittings - Inspection and Modification","sortOrder":2},{"sectionNumber":"3/2009","sectionType":"part","heading":"3/2009","content":"## 3/2009","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original 1975 safety purpose (inspecting wing attachment fittings). The changes are technical updates: exempting aircraft already modified with a specific kit, updating the service bulletin reference from 471 to 471A, and adding a reference to the corresponding US airworthiness directive. The core scope — ensuring structural integrity of wing attachments — remains unchanged."},"complexity_factors":["Single, clearly defined applicability range (serial numbers)","One primary requirement with straightforward compliance interval (500 hours)","Single exemption criterion (specific kit part number)","Minimal cross-referencing (only to Piper SB 471A and USA AD 77-02-06 for context)","No nested conditions or layered exceptions","Very short document (approximately 150 words of substantive content)"],"plain_english_summary":"This CASA Airworthiness Directive mandates recurring inspections of wing attachment fittings on certain Piper PA-36 Pawnee Brave agricultural aircraft (serials 36‑736003 to 36‑7560044), with defects to be repaired or modified per Piper Service Bulletin 471A. Aircraft already fitted with Piper Kit P/N 760‑933 are exempt. It addresses critical structural safety—catching cracks or weaknesses that could lead to wing separation in flight."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment updates the original 1975 AD by specifying Piper Service Bulletin No. 471A (replacing SB No. 471), formally citing USA AD 77-02-06, and excluding aircraft fitted with Piper Kit Part Number 760 933. Those changes narrow applicability and update the remedial instructions compared with the original AD."},"complexity_factors":["Narrow applicability by serial number range (36-736003 to 36-7560044) which requires checking aircraft records.","Explicit exclusion for aircraft incorporating Piper Kit Part Number 760 933, creating an eligibility carve‑out.","Mandated compliance with an external document (Piper Service Bulletin No. 471A) — interpretation depends on that SB's instructions.","\"Inspect, and alter if necessary\" introduces operational discretion for maintenance personnel about when modification is required.","Recurring compliance interval (not exceeding 500 hours TIS) imposes ongoing scheduling and cost implications.","Cross-reference to USA AD 77-02-06 and to the original AD increases regulatory cross‑checking obligations.","Provision that compliance with the original issue of the AD constitutes compliance with this amendment may require historical compliance verification.","Effective date specified (12 March 2009) creates a clear enforcement start point for operators and regulators."],"plain_english_summary":"This amendment requires owners/operators of Piper PA‑36 (Pawnee Brave) aircraft with serial numbers 36‑736003 to 36‑7560044 (except those fitted with Piper Kit Part No. 760 933) to inspect—and, if needed, modify—the forward and aft wing attachment fittings following the instructions in Piper Service Bulletin No. 471A. Inspections must be repeated at intervals not exceeding 500 hours time in service. The rule creates a recurring maintenance obligation for affected operators and may impose inspection and repair costs to maintain airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification","history":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification/history","analysis":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification/analysis","conflicts":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification/important-cases","documents":"/api/acts/ad-pa-36-8-amdt-1-forward-and-aft-wing-attachment-fittings-inspection-and-modification/documents"}}