{"id":"F2006B07454","name":"AD/TPE 331/43 Amdt 2 - Fuel Manifold Assembly P/N 3102469-2","slug":"ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49795,"registerId":"commonwealth-F2006B07454-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TPE 331/43 Amdt 2 - Fuel Manifold Assembly P/N 3102469-2","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 106 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAlliedSignal (Garrett/AiResearch) Turbine Engines \\- TPE 331 Series\n\nAD/TPE 331/43\n\nAmdt 2\n\n  \nFuel Manifold Assembly P/N 3102469-2 6/96\n\nApplicability: TPE331-8,-10-11 and -12 Series Engines as listed in Allied-Signal Aerospace Company (Garrett Engine Division) Alert Service Bulletin TPE-A73-0198 Revision 1 dated 10 January 1992.\n\nRequirement: Action in accordance with the requirements of Allied-Signal Aerospace Company (Garrett Engine Division) Alert Service Bulletin TPE-A73-0198 Revision 1 dated 10 January 1992.\n\nNote 1: FAA AD 93-02-01 refers and supersedes FAA AD 92-02-19.\n\nNote 2: AD/TPE 331/51 refers for TPE331-1 through \\-6 and \\-14 series engines.\n\nCompliance: Unless previously accomplished, within the next 50 hours time in service after 23 May 1996 for installed engines and before installation of ECUs or replacement fuel manifold assemblies.\n\nBackground: The initial issue of this AD was based on FAA AD 92-02-19 which required removal of Stratoflex manifold assemblies carrying certain data on identification tags, and of manifolds which did not have identification tags.\n\nSince the issue of AD 92-02-19, the FAA has established that affected fuel manifold assemblies that do not have identification tags were manufactured before the time period of the suspect items. The FAA has therefore deleted these manifolds from the requirement.\n\nThis amendment makes reference to AD/TPE 331/51 which addresses the same subject for other TPE 331 engine models.\n\nAmendment 1 became effective on 27 May 1993.\n\nThe original issue of this Airworthiness Directive was 31 January 1992.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2564},"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"This amendment narrows the scope from the original 1992 directive. Originally, operators had to remove fuel manifold assemblies lacking identification tags. This amendment removes that requirement after the FAA determined untagged manifolds were manufactured before the suspect production period and are therefore not defective. The directive now only applies to specifically tagged suspect units."},"complexity_factors":["Requires cross-reference to external technical manufacturer documents (AlliedSignal Service Bulletin)","Specific part numbers and engine model variants create narrow applicability","Cross-references to other Airworthiness Directives (AD/TPE 331/51) and FAA regulations","Time-based compliance calculation (50 hours 'time in service') requires technical tracking","Amendment history modifies original requirements based on manufacturing date analysis"],"plain_english_summary":"This safety order requires operators of aircraft with TPE331-8, -10, -11, and -12 engines to inspect and, if necessary, remove AlliedSignal fuel manifold assemblies (P/N 3102469-2) per AlliedSignal Alert Service Bulletin TPE-A73-0198 (Rev 1). Actions must be completed within 50 flight hours after 23 May 1996 or before installing the ECU or a replacement manifold. The rule targets manifolds that could leak or fail, risking engine failure or fire, and narrows prior requirements regarding untagged units."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2","history":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2/history","analysis":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2/analysis","conflicts":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2/conflicts","importantCases":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2/important-cases","documents":"/api/acts/ad-tpe-331-43-amdt-2-fuel-manifold-assembly-p-n-3102469-2/documents"}}