{"id":"F2006B05828","name":"AD/PA-32/33 - Air Conditioning System - Modification","slug":"ad-pa-32-33-air-conditioning-system-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":135811,"registerId":"commonwealth-F2006B05828-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-32/33 - Air Conditioning System - Modification","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-32 (Cherokee Six) Series Aeroplanes\n\n \n\nAD/PA-32/33 Air Conditioning System - Modification 10/74\n\nApplicability: Model PA32-300 with S/Nos. 32-40853, 32-7240056 to 32-7440122 when fitted with factory installed air- conditioning systems.\n\n \n\nDocument: Piper SB No. 427.\n\n \n\nCompliance: Within 100 hours time in service after 31 October 1974.\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\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":3013},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow, technical scope: mandating a specific safety modification for a limited subset of Piper PA-32 aircraft equipped with factory air conditioning. There is no evidence of scope creep or expansion beyond this targeted remedy."},"complexity_factors":["Narrow applicability restricted to specific aircraft model and serial number ranges","Single, specific compliance action required","Reference to external technical standard (Piper Service Bulletin No. 427) for implementation details","Time-based compliance measured in 'hours time in service' rather than calendar dates"],"plain_english_summary":"This legally binding Airworthiness Directive requires owners of specified Piper PA-32-300 Cherokee Six aircraft (listed serial numbers) that were originally fitted with factory air conditioning to modify the air conditioning system per Piper Service Bulletin No. 427. \n\nThe modification must be done within 100 flight hours after 31 October 1974. Failure to comply renders the aircraft unairworthy and unlawful to operate."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-33-air-conditioning-system-modification","history":"/api/acts/ad-pa-32-33-air-conditioning-system-modification/history","analysis":"/api/acts/ad-pa-32-33-air-conditioning-system-modification/analysis","conflicts":"/api/acts/ad-pa-32-33-air-conditioning-system-modification/conflicts","importantCases":"/api/acts/ad-pa-32-33-air-conditioning-system-modification/important-cases","documents":"/api/acts/ad-pa-32-33-air-conditioning-system-modification/documents"}}