{"id":"F2006B06206","name":"AD/PHZL/29 Amdt 1 - SUPERSEDED","slug":"ad-phzl-29-amdt-1-superseded","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47088,"registerId":"commonwealth-F2006B06206-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PHZL/29 Amdt 1 - SUPERSEDED","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET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 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Propellers - Variable Pitch - Hartzell\n\n \n\nAD/PHZL/29\n\nAmdt 1\n\n\nSUPERSEDED 1/74\n\n \n\nSUPERSEDED by AD/PHZL/36 Amdt 2.\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\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"rejected","complexity_score":1,"rejection_reason":"This is a navigation/metadata stub indicating a superseded Airworthiness Directive. It contains no substantive legislative content — only a header stating the document has been replaced by AD/PHZL/36 Amdt 2. No operative provisions, requirements, or explanatory material are present.","scope_assessment":{"changed":false,"description":"Not applicable — this is a superseded document placeholder with no substantive content to assess for scope changes."},"complexity_factors":["Document is a placeholder/superseded notice with no substantive legal content","Contains only metadata (document number, amendment number, supersession notice)","No operative provisions, definitions, or conditional logic present","Zero cross-references to other legislative instruments","Extremely short — essentially a cover page indicating obsolescence"],"plain_english_summary":"This document is a **superseded Airworthiness Directive** issued by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998.\n\n**What it is:** An Airworthiness Directive (AD) is a mandatory safety notice that requires aircraft owners or operators to take specific actions to fix unsafe conditions in aircraft, engines, or components. This particular AD (numbered AD/PHZL/29, Amendment 1) related to **Hartzell variable-pitch propellers**.\n\n**What happened to it:** The document has been **superseded** (replaced) by a newer directive: AD/PHZL/36 Amendment 2. This means the requirements in this old directive no longer apply — anyone subject to it must now follow the replacement directive instead.\n\n**Why it matters:** Even though this version is no longer in force, it remains part of the historical safety record. It shows the evolution of safety requirements for Hartzell propellers and helps trace what safety actions were required at different points in time."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"This entry no longer sets the operative requirements: AD/PHZL/29 Amendment 1 has been superseded. The scope of enforceable obligations moved to the successor instrument identified here (AD/PHZL/36 Amdt 2). The provided text does not include the original or replacement technical requirements, so readers must consult AD/PHZL/36 Amdt 2 to determine the current scope of mandatory actions and affected aircraft."},"complexity_factors":["Document is brief and primarily a status record (supersession) rather than a substantive directive.","Contains a cross-reference to a successor AD (AD/PHZL/36 Amdt 2) requiring users to consult another instrument for operative requirements.","Technical subject area (variable-pitch propellers) is specialised, so understanding practical implications requires technical/maintenance knowledge outside the text.","Regulatory context (Part 39 CASA airworthiness directive regime) requires familiarity with how ADs are issued and enforced, although that context is signposted in the header.","Ambiguous archival notations (e.g. the line “SUPERSEDED 1/74”) that may require interpretation or confirmation from official AD records."],"plain_english_summary":"This record is a CASA Airworthiness Directive entry for Hartzell variable‑pitch propellers (AD/PHZL/29 Amdt 1) that has been formally superseded by AD/PHZL/36 Amdt 2. It affects aircraft owners, operators and maintenance organisations responsible for those propellers. Its practical effect is archival: it no longer imposes the operative requirements—affected parties must consult the successor AD for current mandatory inspections, repairs and associated compliance costs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-phzl-29-amdt-1-superseded","history":"/api/acts/ad-phzl-29-amdt-1-superseded/history","analysis":"/api/acts/ad-phzl-29-amdt-1-superseded/analysis","conflicts":"/api/acts/ad-phzl-29-amdt-1-superseded/conflicts","importantCases":"/api/acts/ad-phzl-29-amdt-1-superseded/important-cases","documents":"/api/acts/ad-phzl-29-amdt-1-superseded/documents"}}