{"id":"F2006B05803","name":"AD/PA-31/99 Amdt 1 - Elevator Control Tube","slug":"ad-pa-31-99-amdt-1-elevator-control-tube","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135730,"registerId":"commonwealth-F2006B05803-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/99 Amdt 1 - Elevator Control Tube","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-31/99\n\nAmdt 1\n\n\nElevator Control Tube 7/83\n\n \n\nApplicability: All models PA-31T with S/Nos. 31T-7400002 to 31T-8120070. All models PA-31T1 with S/Nos. 31T-7804001 to 31T-8104073. All models PA-31T2 with S/Nos. 31T- 8166001 to 31T-8166059, 31T-8166061 and 31T-8166062.\n\n \n\nRequirement: Action in accordance with Piper SB No. 715A.\n\n \n\nCompliance: Unless already accomplished, within 100 hours time in service after 31 July 1983.\n\n \n\nBackground: Revision A to Service Bulletin No. 715 has extended effectivity and added Part 2 which is Applicability which have complied with AD/PA-31/99.\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":2261},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The amendment extends applicability to additional aircraft serial numbers beyond the original directive, and adds Part 2 requirements specifically for aircraft that had already complied with the original AD/PA-31/99."},"complexity_factors":["Single operative requirement referencing external technical standard (Piper SB 715A)","Specific applicability limited to enumerated aircraft serial number ranges","Straightforward compliance deadline with single conditional exception ('unless already accomplished')","No internal definitions, nested exceptions, or complex legislative cross-references"],"plain_english_summary":"This compulsory Airworthiness Directive applies to owners/operators of specified Piper PA‑31-series aircraft (check listed serial numbers). It requires compliance with Piper Service Bulletin No. 715A concerning the elevator control tube to ensure safe pitch control, with actions due within 100 hours time‑in‑service after 31 July 1983 unless already done. This amendment broadens serial‑number coverage and adds new requirements for aircraft that previously complied."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube","history":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube/history","analysis":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube/analysis","conflicts":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube/conflicts","importantCases":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube/important-cases","documents":"/api/acts/ad-pa-31-99-amdt-1-elevator-control-tube/documents"}}