{"id":"F2006B05911","name":"AD/PA-34/40 - Stabilator Attach Fitting Corrosion","slug":"ad-pa-34-40-stabilator-attach-fitting-corrosion","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135979,"registerId":"commonwealth-F2006B05911-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-34/40 - Stabilator Attach Fitting Corrosion","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-34 (Seneca) Series Aeroplanes\n\n \n\nAD/PA-34/40 Stabilator Attach Fitting Corrosion 5/87\n\nApplicability: All models listed in Piper SB No 856. Requirement: Action in accordance with Piper SB No 856.\n\nCompliance: At the next scheduled inspection for Maintenance Release issue after 7 May 1987 and thereafter at intervals not exceeding one year.\n\n \n\nBackground:  The manufacturer reports instances of severe corrosion between the steel attach fittings and fuselage structure.\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":1900},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: addressing a specific corrosion defect in stabilator attach fittings on Piper PA-34 aircraft. It does not expand beyond the manufacturer's original safety bulletin."},"complexity_factors":["Extremely short text (under 150 words)","Single external technical reference (Piper SB No 856) rather than detailed embedded instructions","Simple linear compliance timeline (once after date, then annually)","No defined terms section or cross-references to other legislation","Unconditional applicability (all models listed in the bulletin)"],"plain_english_summary":"Owners and operators of Piper PA‑34 (Seneca) aircraft must carry out mandatory inspections of the stabilator attach fittings per Piper Service Bulletin No. 856 to detect severe corrosion between the steel fittings and airframe. \n\nFirst inspection: at the next maintenance after 7 May 1987, then every 12 months. The AD prevents stabilator failure and loss of pitch control by finding corrosion before it becomes catastrophic."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion","history":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion/history","analysis":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion/analysis","conflicts":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion/conflicts","importantCases":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion/important-cases","documents":"/api/acts/ad-pa-34-40-stabilator-attach-fitting-corrosion/documents"}}