{"id":"F2006B06370","name":"AD/PT6A/7 - Re-Routing Of Governor Air Pressure Line","slug":"ad-pt6a-7-re-routing-of-governor-air-pressure-line","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47626,"registerId":"commonwealth-F2006B06370-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PT6A/7 - Re-Routing Of Governor Air Pressure Line","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 - 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Pratt and Whitney Canada Turbine Engines - PT6A Series\n\n \n\nAD/PT6A/7 Re-Routing Of Governor Air Pressure Line 10/85\n\nApplicability: PT6A-6, -6A and 6B prior to S/Nos. PC-E20117. Document:  1. UACL SB No. 27, Rev. 2;\n\n2.    UACL SB No. 1013, or\n\n \n\n3.    AD/UAC-T/1A.\n\n \n\nCompliance: Before installation in an aircraft following next reconditioning completed after 15 April 1966.\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":2099},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains a narrow, technical scope focused solely on a specific mechanical modification for identified engine models. There is no evidence of regulatory scope creep; it addresses a discrete airworthiness issue without expanding into operational or administrative requirements beyond the physical modification of the engine."},"complexity_factors":["Single, specific mechanical requirement with no conditional exceptions","Only 3 external technical references (Service Bulletins)","Narrow applicability limited to specific engine models and serial number ranges","Simple compliance trigger based on maintenance event (reconditioning) and date","No defined terms or interpretation sections"],"plain_english_summary":"This CASA Airworthiness Directive mandates that owners, operators and maintainers of Pratt & Whitney Canada PT6A-6, -6A and -6B engines (S/N earlier than PC‑E20117) re-route the governor air pressure line per the manufacturer’s Service Bulletins. Compliance is required before installing any engine after its next reconditioning completed after 15 April 1966. The change prevents potential engine failure or loss of power from the original line routing."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line","history":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line/history","analysis":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line/analysis","conflicts":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line/conflicts","importantCases":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line/important-cases","documents":"/api/acts/ad-pt6a-7-re-routing-of-governor-air-pressure-line/documents"}}