{"id":"F2008L03695","name":"AD/PA-24/24 - Propeller Inspection and Operating Instructions - CANCELLED","slug":"ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75400,"registerId":"commonwealth-F2008L03695-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-24 (Comanche) Series Aeroplanes","sectionType":"division","heading":"Piper PA-24 (Comanche) Series Aeroplanes","content":"### Piper PA-24 (Comanche) Series Aeroplanes\n\n| AD/PA-24/24 | Propeller Inspection andOperating Instructions | 11/2008 |\n| ----------- | ---------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                    |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 October 2008.                                                                                                                                                                                                                                                      |\n| Background:  | This unique Australian AD specified visual and dye penetrant inspection of McCauley propeller blades, and installation of a cockpit placard, in accordance with McCauley SB No. 76. Compliance was required within 25 hours time in service after January 1970. The AD is no longer required. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n11 September 2008","sortOrder":0},{"sectionNumber":"AD/PA-24/24","sectionType":"part","heading":"AD/PA-24/24","content":"## AD/PA-24/24","sortOrder":1},{"sectionNumber":"Propeller Inspection andOperating Instru","sectionType":"part","heading":"Propeller Inspection andOperating Instructions","content":"## Propeller Inspection and  \nOperating Instructions","sortOrder":2},{"sectionNumber":"11/2008","sectionType":"part","heading":"11/2008","content":"## 11/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2066},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly one function: to repeal a previous airworthiness directive. It does not expand into new policy areas or deviate from its stated purpose of discontinuing the propeller inspection requirements."},"complexity_factors":["Single operative action: cancellation of a previous instrument only","No defined terms or interpretation section","Zero conditional provisions, exceptions, or nested logic","No cross-references to other legislation (only references the AD being cancelled)","Extremely short operative content (less than 50 words)"],"plain_english_summary":"This document **cancels** a previous safety directive (Airworthiness Directive AD/PA-24/24) that applied to Piper PA-24 Comanche aircraft.\n\n**What the old rule required:**\nThe original directive (dating back to 1970) mandated that aircraft owners conduct visual and dye penetrant inspections of McCauley propeller blades to detect defects, and install a specific warning placard in the cockpit.\n\n**What this document does:**\nAs of **23 October 2008**, the inspection and placard requirements are officially abolished. Owners and operators of affected aircraft no longer need to comply with the previous directive.\n\n**Why it matters:**\nThis removes a maintenance burden from aircraft owners, formally ending a safety requirement that has been deemed no longer necessary."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled","history":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled/history","analysis":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled/analysis","conflicts":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled/conflicts","importantCases":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled/important-cases","documents":"/api/acts/ad-pa-24-24-propeller-inspection-and-operating-instructions-cancelled/documents"}}