{"id":"F2006B05745","name":"AD/PA-31/40 Amdt 1 - Landing Gear Selector Cable Attachment Pin","slug":"ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135575,"registerId":"commonwealth-F2006B05745-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-31/40 Amdt 1 - Landing Gear Selector Cable Attachment Pin","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nPiper PA-31 Series Aeroplanes\n\nAD/PA-31/40\n\nAmdt 1\n\n  \nLanding Gear Selector Cable Attachment Pin 6/97\n\n| Applicability: | Models              | Serial Numbers                                           |\n| -------------- | ------------------- | -------------------------------------------------------- |\n|                | PA-31 and PA-31-325 | 31-7300950 through 31-7612017                            |\n|                | PA-31-350           | 31-7305048, 31-7305049, and 31-7305052 through31-7652032 |\n|                | PA-31P              | 31P-7300128 through 31P-7630005                          |\n|                | PA-31T              | 31T-7400002 through 31T-7620013                          |\n\nRequirement: Modify the landing gear selector cable forward attachment pin assembly by installing a safety lock wire in accordance with the Instructions section of Piper Service Bulletin 488.\n\nNote: FAA AD 96-24-13 Amdt 39-9837 refers (supersedes AD 75-26-18).\n\nCompliance: Unless already accomplished, within 100 hours time in service after 22 May 1997.\n\nThe compliance of the initial issue of this Directive was, “within 100 hours time in service after 27 February 1976”.\n\nThis Amendment becomes effective on 22 May 1997.\n\nBackground: The actions specified by this Directive are intended to prevent the landing gear selector cable forward attachment pin assembly from becoming separated from the powerpack control arm, which, if not corrected, could cause loss of landing gear retraction or extension.\n\nAmendment 1 is issued in response to a new FAA AD which corrects an incorrect applicability designation of Piper Model PA-31 aircraft as Piper Model PA-31-310.\n\nThe original issue of this Airworthiness Directive became effective on 27 February 1976.","sortOrder":0}],"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 scope — it merely corrects an aircraft model designation error (PA-31 vs PA-31-310) and updates the compliance timeframe. The safety purpose and mechanical fix remain identical to the 1976 original."},"complexity_factors":["Single, specific mechanical requirement (install safety lock wire per manufacturer bulletin)","Limited applicability — only 4 specific aircraft models with defined serial number ranges","One compliance condition (100 hours time in service) with simple exception (unless already accomplished)","No nested definitions, cross-references to other legislation, or conditional logic beyond the applicability table","Background and rationale clearly stated in plain language"],"plain_english_summary":"This safety amendment requires owners of certain Piper PA‑31 family aircraft (specific serial numbers) to install a safety lock wire on the landing-gear selector cable pin so the pin cannot back out. It affects owners/operators of Navajo, Chieftain and Cheyenne models listed and matters because a loose pin can disable gear extension or retraction, risking gear‑up landings. Compliance was set at within 100 flight hours after 22 May 1997."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 corrects an incorrect applicability designation for the Piper PA-31 model (it responds to a new FAA AD correcting a PA-31/PA-31-310 designation). The technical requirement (install safety lock wire per Piper SB 488) and the compliance timeframe remain as originally specified (see 'Amendment 1 is issued...' and 'The compliance of the initial issue...')."},"complexity_factors":["Multiple aircraft models and distinct serial number ranges listed for applicability","Required modification references an external manufacturer document (Piper Service Bulletin 488) for instructions","Cross-reference to a related FAA Airworthiness Directive (FAA AD 96-24-13) introduces inter-jurisdictional linkage","Short, specific compliance window (100 hours TIS) creates operational scheduling pressure","Amendment corrects an applicability designation rather than altering the technical remedy"],"plain_english_summary":"This Directive requires installing a safety lock wire on the landing‑gear selector cable forward attachment pin assembly on specified Piper PA‑31 series aeroplanes, using the method in Piper Service Bulletin 488 (Requirement).\n\nThe CAA states the change aims to prevent the pin separating from the powerpack control arm, which could cause loss of landing‑gear retraction or extension; owners/operators must carry out the work within 100 hours time in service after 22 May 1997 and meet parts and labour costs (Background; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin","history":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin/history","analysis":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin/analysis","conflicts":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin/conflicts","importantCases":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin/important-cases","documents":"/api/acts/ad-pa-31-40-amdt-1-landing-gear-selector-cable-attachment-pin/documents"}}