{"id":"F2006B05421","name":"AD/PA-22/17 - Cabin Heater Box Plate - Modification","slug":"ad-pa-22-17-cabin-heater-box-plate-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":46098,"registerId":"commonwealth-F2006B05421-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PA-22/17 - Cabin Heater Box Plate - 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-22 (Tri-Pacer and Colt) Series Aeroplanes\n\n \n\nAD/PA-22/17 Cabin Heater Box Plate - Modification 7/61\n\nApplicability: Model PA-22-108 with S/Nos. 22-8000 to 22-8440 and 22-8443. Document:  Piper SB No. 203.\n\nCompliance: Forthwith.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1609},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive maintains its original, highly specific scope. It addresses a discrete technical modification for a limited production run of aircraft and has not expanded to cover additional models or broader maintenance requirements."},"complexity_factors":["Single, unambiguous compliance requirement (one specific modification)","Extremely narrow applicability (one aircraft model, specific serial number range)","No defined terms, exceptions, or conditional clauses","Single external reference to manufacturer service bulletin"],"plain_english_summary":"This Airworthiness Directive is a mandatory safety order for owners/operators of Piper PA-22-108 \"Colt\" aircraft (serials 22-8000 to 22-8440 and 22-8443). It requires an immediate modification to the cabin heater box plate per Piper Service Bulletin No. 203, and the aircraft may not fly until complied with.\n\nThe change addresses a safety defect that could allow exhaust fumes or fire into the cabin (carbon monoxide risk); noncompliance breaches aviation law."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification","history":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification/history","analysis":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification/analysis","conflicts":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification/conflicts","importantCases":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification/important-cases","documents":"/api/acts/ad-pa-22-17-cabin-heater-box-plate-modification/documents"}}