{"id":"F2008L03256","name":"AD/PA-32/33 - Air Conditioning System - Modification - CANCELLED","slug":"ad-pa-32-33-air-conditioning-system-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75360,"registerId":"commonwealth-F2008L03256-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-32 (Cherokee Six) Series Aeropl","sectionType":"division","heading":"Piper PA-32 (Cherokee Six) Series Aeroplanes","content":"### Piper PA-32 (Cherokee Six) Series Aeroplanes\n\n| AD/PA-32/33 | Air Conditioning System - Modification | 10/2008 |\n| ----------- | -------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                    |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 25 September 2008.                                                                                                                                                                                                                    |\n| Background:  | This unique Australian AD specified a once-only modification of any factory-installed air conditioning system in accordance with Piper SB No. 427. Compliance was required within 100 hours time in service after October 1974. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n12 August 2008","sortOrder":0},{"sectionNumber":"AD/PA-32/33","sectionType":"part","heading":"AD/PA-32/33","content":"## AD/PA-32/33","sortOrder":1},{"sectionNumber":"Air Conditioning System - Modification","sectionType":"part","heading":"Air Conditioning System - Modification","content":"## Air Conditioning System - Modification","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2229},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the legal effect of the previous airworthiness directive but does not alter the original scope (which applied to Piper PA-32 series aircraft with factory-installed air conditioning). The regulated population and subject matter remain identical; the requirements simply cease to apply as of the cancellation date."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references","Extremely short length (under 150 words of operative text)","No procedural requirements for compliance"],"plain_english_summary":"This document officially **cancels a safety rule** that previously required owners of **Piper PA-32 Cherokee Six aircraft** (a six-seat light aircraft) to modify their air conditioning systems.\n\n**What the rule used to require:**\n- Owners had to modify any factory-installed air conditioning system according to Piper Service Bulletin No. 427\n- The work had to be completed within 100 hours of flying time after October 1974\n\n**What changed:**\nThis directive is **completely cancelled** as of 25 September 2008. Aircraft owners and maintenance engineers no longer need to perform this specific air conditioning modification to keep the aircraft legally airworthy.\n\n**Who needs to know:**\nOwners, operators, and maintenance engineers of Piper PA-32 series aircraft. While this specific requirement is dead, other safety and maintenance rules still apply to these aircraft."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled","history":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled/history","analysis":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-32-33-air-conditioning-system-modification-cancelled/documents"}}