{"id":"F2006B05788","name":"AD/PA-31/82 - Rudder and Aileron Trim Tab Attachment - Inspection","slug":"ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135682,"registerId":"commonwealth-F2006B05788-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/82 - Rudder and Aileron Trim Tab Attachment - Inspection","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-31 Series Aeroplanes\n\n \n\nAD/PA-31/82 Rudder and Aileron Trim Tab Attachment - Inspection\n\n\n9/79\n\n \n\nApplicability: All models, PA-31P with S/Nos. 31P-1 to 31P-7730012 PA-31T Cheyenne/Cheyenne II with S/Nos. 31T-7400002 31T-7920053 and 31T-7920060 to 31T-7920063; PA- 31T1 Cheyenne 1 with S/Nos. 31T-7804001 to 31T-7904030 31T-7904032 to 31T-\n\n7904035.\n\n \n\nDocument: Piper SB No. 659.\n\n \n\nCompliance: Within 25 hours time in service after 10 August 1979.\n\n \n\nBackground: The manufacturer has advised that some of the trim tab hinge attach bolts may not have been correctly torqued at manufacture.\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":2556},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope addressing the specific manufacturing defect in trim tab hinge attach bolts for the specified Piper aircraft models."},"complexity_factors":["External reference to manufacturer service bulletin (Piper SB No. 659) required for detailed inspection procedures","Narrow applicability restricted to specific aircraft serial number ranges","Technical aviation terminology (torque specifications, trim tabs, time in service)","Single-issue directive with straightforward compliance requirement and no nested exceptions"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of certain Piper PA‑31P, PA‑31T (Cheyenne/Cheyenne II) and PA‑31T1 (Cheyenne 1) aircraft to inspect the rudder and aileron trim‑tab hinge bolts and confirm they are torqued to specification.  \n\nThe check must be done within 25 flight hours after the directive’s effective date because the manufacturer found some bolts may have been under‑torqued, which could impair control and create a safety risk."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection","history":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection/history","analysis":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection/analysis","conflicts":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection/conflicts","importantCases":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection/important-cases","documents":"/api/acts/ad-pa-31-82-rudder-and-aileron-trim-tab-attachment-inspection/documents"}}