{"id":"F2006B07446","name":"AD/TPE 331/36 Amdt 2 - Third Stage Stator Radiographic Inspection","slug":"ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":49763,"registerId":"commonwealth-F2006B07446-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/TPE 331/36 Amdt 2 - Third Stage Stator Radiographic Inspection","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)  AlliedSignal (Garrett/AiResearch) Turbine Engines - TPE 331 Series\n\n \n\nAD/TPE 331/36\n\nAmdt 2\n\n\nThird Stage Stator Radiographic Inspection 6/93\n\n \n\nCANCELLED.\n\n \n\nBackground: The requirement has been incorporated into AD/TPE 331/41 by Amdt 1.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a cancellation instrument that explicitly states its requirements have been incorporated into another directive. The scope has not expanded; rather, it has been deliberately consolidated into AD/TPE 331/41."},"complexity_factors":["Document is a cancellation notice, not substantive legislation","No operative provisions or requirements remain in force","Single sentence of operative content ('CANCELLED')","No defined terms, cross-references, or conditional logic within the active text","Background note is purely informational, not legislative"],"plain_english_summary":"This document is a **cancelled Airworthiness Directive** (AD) for a specific type of aircraft engine.\n\n**What it is:**\nAn Airworthiness Directive is a mandatory safety notice issued by the Civil Aviation Safety Authority (CASA) that requires aircraft owners or operators to perform specific inspections, repairs, or modifications to keep their aircraft safe to fly.\n\n**What this particular directive did:**\nThis directive (AD/TPE 331/36, Amendment 2) originally required **radiographic inspection** (X-ray examination) of the \"third stage stator\" — a stationary component in the turbine section of AlliedSignal (formerly Garrett/AiResearch) TPE 331 series engines. These engines are commonly used in small turboprop aircraft.\n\n**Why it matters now:**\nThis directive has been **cancelled**. The safety requirement it contained has been moved into a different directive: **AD/TPE 331/41, Amendment 1**. This consolidation means owners and operators no longer need to follow this specific document — they must instead comply with the updated directive that now contains these requirements.\n\n**Who it affects:**\nOperators and maintainers of aircraft powered by TPE 331 series engines, though they now follow the consolidated directive instead."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The cancellation does not remove the inspection requirement; it relocates that requirement into AD/TPE 331/41 Amdt 1 (Background line). In substance, the obligation continues under a different AD, so scope of the safety requirement remains effectively the same though its location in the Schedule has changed."},"complexity_factors":["Document is a single-line cancellation with no technical detail","Dependency on another AD (AD/TPE 331/41 Amdt 1) for substantive requirements","Requires cross-referencing between directives for operative instructions","Administrative change rather than introduction of new technical obligations"],"plain_english_summary":"This instrument cancels Airworthiness Directive AD/TPE 331/36 Amdt 2. The third-stage stator radiographic inspection requirement is not removed but has been incorporated into AD/TPE 331/41 Amdt 1.\n\nIt affects operators, maintainers and owners of AlliedSignal (Garrett/AiResearch) TPE 331 series engines, who must now reference AD/TPE 331/41 Amdt 1 for current mandatory inspection and compliance details."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection","history":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection/history","analysis":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection/analysis","conflicts":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection/conflicts","importantCases":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection/important-cases","documents":"/api/acts/ad-tpe-331-36-amdt-2-third-stage-stator-radiographic-inspection/documents"}}