{"id":"F2006B10968","name":"AD/JT15D/5 - Modified Fuel Manifold Assembly","slug":"ad-jt15d-5-modified-fuel-manifold-assembly","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56543,"registerId":"commonwealth-F2006B10968-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JT15D/5 - Modified Fuel Manifold Assembly","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 - JT15D Series\n\n \n\nAD/JT15D/5 Modified Fuel Manifold Assembly 10/85\n\nApplicability: JT15D-4 model engines with S/Nos. up to and including PC-E70110. Document:  1. Pratt & Whitney of Canada SB No. 7087, Rev. 1.; or\n\n2. AD/UAC-T/29.\n\n \n\nCompliance: At first hot section inspection or overhaul completed after 31 July 1978.\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":1523},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow technical scope—a targeted safety mandate for a specific engine component. No evidence of expansion beyond the original airworthiness safety purpose."},"complexity_factors":["Extremely brief instrument with single applicability criterion (specific engine model and serial number range)","Only two external technical document references","Simple compliance trigger (first inspection/overhaul after a fixed date)","No defined terms, exceptions, or conditional sub-clauses"],"plain_english_summary":"This **Airworthiness Directive** is a mandatory safety order affecting specific aircraft engines. It requires owners and operators of Pratt & Whitney Canada JT15D-4 turbine engines (with serial numbers up to PC-E70110) to modify the fuel manifold assembly.\n\n**Who it affects:** Aircraft operators and maintenance organisations using these specific engines.\n\n**What must be done:** Install a modified fuel manifold assembly in accordance with Pratt & Whitney Service Bulletin No. 7087 (Revision 1).\n\n**When:** At the first \"hot section inspection\" (a major maintenance check of the engine's high-temperature components) or engine overhaul completed after 31 July 1978.\n\n**Why it matters:** This addresses a specific safety defect in the original fuel manifold design, preventing potential engine failures or fires."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly","history":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly/history","analysis":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly/analysis","conflicts":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly/conflicts","importantCases":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly/important-cases","documents":"/api/acts/ad-jt15d-5-modified-fuel-manifold-assembly/documents"}}