{"id":"F2006B05937","name":"AD/PA-36/20 Amdt 1 - Engine Mount Attach Brackets - Inspection and Modification","slug":"ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":136064,"registerId":"commonwealth-F2006B05937-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-36/20 Amdt 1 - Engine Mount Attach Brackets - Inspection and 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-36 (Pawnee Brave) Series Aeroplanes\n\n \n\nAD/PA-36/20\n\nAmdt 1\n\n\nEngine Mount Attach Brackets - Inspection and Modification\n\n\n1/84\n\n \n\nApplicability: All model PA-36. Document: Piper SB No. 615.\n\nCompliance: Unless previously accomplished within 100 hours time in service after 31 January 1984 and thereafter at intervals not exceeding 100 hours time in service until modified.\n\n \n\nBackground: Engine mount brackets have been found cracked on aircraft outside model effectivity of S.B. 615. This Directive is raised in issue to extend compliance to all models PA36 aircraft. Piper Kit P/No. 763- 877 is approved for use on all PA36 aircraft.\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":2198},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"Amendment 1 expands coverage from a limited subset of PA-36 models (per Piper SB No. 615) to mandate inspection and modification for all PA-36 model aircraft, following the discovery of cracked brackets on aircraft outside the initial model effectivity."},"complexity_factors":["Single, specific mechanical component addressed (engine mount attach brackets)","Simple recurring compliance interval (every 100 hours flight time)","No nested exceptions, conditional logic, or intricate cross-referencing","Brief document with limited applicability (one aircraft series)"],"plain_english_summary":"**What this means for aircraft owners:**\n\nIf you own or operate a **Piper PA-36 (Pawnee Brave)** aircraft, you must have the brackets that attach the engine to the airframe inspected for dangerous cracks.\n\n**What you must do:**\n*   **First Inspection:** Check the engine mount attach brackets for cracks within 100 hours of flight time after 31 January 1984.\n*   **Keep Checking:** Repeat this inspection every 100 hours of flight time until the modification is done.\n*   **Fix It:** Install the approved Piper modification kit (Part Number 763-877) to permanently correct the defect.\n\n**Why this matters:**\nThese brackets hold the engine to the plane. Cracks have been found in these brackets on various PA-36 models, and if they fail, the engine could detach in flight. This directive expands a previous safety notice to cover **all** PA-36 models—not just some—after cracks were discovered on aircraft that weren't in the original target group."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification","history":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification/history","analysis":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification/analysis","conflicts":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification/important-cases","documents":"/api/acts/ad-pa-36-20-amdt-1-engine-mount-attach-brackets-inspection-and-modification/documents"}}