{"id":"F2006B05830","name":"AD/PA-32/35 - Nose Landing Gear - Inspection and Modification","slug":"ad-pa-32-35-nose-landing-gear-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135818,"registerId":"commonwealth-F2006B05830-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/35 - Nose Landing Gear - Inspection and Modification","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-32 (Cherokee Six) Series Aeroplanes\n\nAD/PA-32/35 Nose Landing Gear \\- Inspection and Modification 1/75\n\nApplicability: All models with nosewheel installation to STC SA281AL.\n\nRequirement: 1. (a) Visually inspect the noseqheel fork (Tibbetts Herree Air- motive P/N PA-32- 1) for bends and distortion.\n\n(b) Visually inspect the nosewheel fork (Tibbetts Herre Air- motive P/N PA-32-1) for cracks using an approved dye penetrant technique.\n\n    2. Replace the following items:\n\n    (a) Nosewheel Fork (Tibbetts Herre Airmotive P/N PA-32-1) with Fork P/N PA- 32-1\n\n    (b) Cap-Piper P/N 20825-00 with Tibbetts Herre P/N PA-32-5.\n\n    (c) Axle Rod \\- Tibbetts Herre P/N PA-32-4 with Tibbetts Herre P/N PA-32-6.\n\nCompliance: For Para. 1 \\- Within 25 hours time in service after 6 December 1974 and thereafter at intervals not exceeding 25 hours time in service until modified.\n\nFor Para.2 \\- Within 100 hours time in service after 6 December 1974, unless already accomplished.\n\nNote: Applicable aircraft will have an 8.00-6 nose wheel tyre fitted.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft modification. It has not expanded beyond its original purpose of ensuring nose landing gear integrity."},"complexity_factors":["Single, specific technical scope (one aircraft type, one modification)","Only 2 main requirements with clear sub-paragraphs (1a, 1b, 2a, 2b, 2c)","Straightforward compliance deadlines (25 hours and 100 hours 'time in service')","Minimal cross-referencing (only references to part numbers and one STC)","No nested exceptions or conditional logic","Short document (approximately 150 words of substantive content)"],"plain_english_summary":"CASA’s Airworthiness Directive orders owners of Piper PA-32 aircraft fitted with the STC SA281AL 8.00-6 nosewheel to inspect the nosewheel fork for bends, distortion and cracks every 25 flight hours until modified, and to replace the fork, cap and axle rod with improved parts within 100 flight hours.  \n\nIt addresses a nose-gear safety defect; noncompliance renders the aircraft unairworthy. Affects pilots, owners and maintenance engineers responsible for the specified PA-32s."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive's applicability is explicitly limited to \"All models with nosewheel installation to STC SA281AL\" and its measures are confined to inspection and replacement of specified nosewheel parts. The instrument does not, within its text, broaden or narrow that applicability beyond the stated scope (see Applicability; Requirement 1–2; Compliance)."},"complexity_factors":["Narrow applicability restricted to aircraft with nosewheel installation to STC SA281AL (Applicability)","Specific part numbers required for replacement (Requirement 2)","Recurring short inspection interval (25 hours) until modification is fitted (Requirement 1; Compliance)","Final replacement deadline (100 hours) to end recurring inspections (Requirement 2; Compliance)","Mandated inspection technique (approved dye‑penetrant) requiring appropriate facilities/skills (Requirement 1(b))","Operational impact: owners/operators must schedule inspections/replacement and bear parts/downtime costs (Requirement 1–2; Compliance)"],"plain_english_summary":"Requires owners/operators of Piper PA‑32 aircraft fitted under STC SA281AL to inspect and then replace specified nosewheel fork components. Inspect visually for bends and use an approved dye‑penetrant crack check every 25 flight‑hours until the parts are replaced; replace the listed fork, cap and axle-rod parts within 100 flight‑hours. Owners/operators pay for inspections, parts and downtime; the AD prescribes methods and fixed deadlines (see Requirement 1–2; Compliance)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification","history":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification/history","analysis":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification/analysis","conflicts":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification/important-cases","documents":"/api/acts/ad-pa-32-35-nose-landing-gear-inspection-and-modification/documents"}}