{"id":"F2006B06237","name":"AD/PHZL/80 - Composite Blades Cracking","slug":"ad-phzl-80-composite-blades-cracking","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47182,"registerId":"commonwealth-F2006B06237-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nPropellers \\- Variable Pitch \\- Hartzell","sortOrder":0},{"sectionNumber":"AD/PHZL/80 Composite Blades Cracking 13/","sectionType":"part","heading":"AD/PHZL/80 Composite Blades Cracking 13/2003","content":"# AD/PHZL/80 Composite Blades Cracking 13/2003\n\nApplicability: Hartzell Propeller Inc. model HC-A6A-3 series propellers with A10460 series composite blades installed.\n\nNote 1: These propellers are installed on, but not limited to, Short Brothers Ltd. SD3-60 Series airplanes.\n\nRequirement: 1. Perform a visual inspection of the A10460 series composite propeller blades for cracks in accordance with Para 3A Accomplishment Instructions of Hartzell Alert Service Bulletin (ASB) HC-ASB-61-265.\n\n    2. Perform an inspection of the A10460 series composite propeller blades for cracks in accordance with Para 3B Accomplishment Instructions of Hartzell ASB HC- ASB-61-265.\n\n    3. If you find a crack in the propeller blade, remove the blade from service.\n\nNote 2: FAA AD 2003-22-05 Amendment 39-13352 refers.\n\nCompliance: For Requirement 1: Within 100 propeller flight hours or 30 days after the effective date of this AD, whichever occurs first. Thereafter at intervals not to exceed 300 propeller flight hours.\n\nFor Requirement 2: At each overhaul of the propeller. For Requirement 3. Prior to further flight.\n\nThis Airworthiness Directive becomes effective on 25 December 2003.","sortOrder":1}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — addressing a specific safety defect in a specific propeller blade series. It has not expanded beyond its original purpose of mandating inspections for composite blade cracking."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined requirements with clear, sequential numbering","Single applicability criterion (specific propeller model series)","Minimal cross-referencing (only one external document referenced — Hartzell ASB HC-ASB-61-265)","Straightforward compliance timeline with simple alternatives ('whichever occurs first')","No nested exceptions or conditional logic beyond basic 'if-then' (if crack found, remove from service)","No interpretation section with defined terms"],"plain_english_summary":"This CASA Airworthiness Directive mandates inspections of Hartzell HC-A6A-3 propellers with A10460 composite blades — commonly fitted to Short 360s — because those blades can develop cracks that risk in‑flight failure. Operators and maintainers must perform prompt and recurring visual and detailed checks and remove any cracked blade from service before flight. It’s required to prevent catastrophic engine damage, loss of control, or crash and aligns with an FAA safety action."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope is confined to the specified propeller model and A10460 blades and requires inspections and removal of cracked blades in accordance with the Hartzell ASB. It implements a corrective inspection/removal regime consistent with addressing the stated unsafe condition and does not expand applicability or introduce additional obligations beyond the inspection schedule and removal requirement."},"complexity_factors":["Narrow applicability: limited to Hartzell HC‑A6A‑3 propellers with A10460 series composite blades (Applicability).","Simple mandated actions: visual inspection, detailed inspection per manufacturer's ASB, and removal of cracked blades (Requirement 1–3).","Mixed timing rules: time-in-service initial inspection (100 flight hours or 30 days), recurring interval (300 hours), and event-based inspection at overhaul (Compliance).","Reliance on manufacturer's procedures: inspections must follow Paras 3A/3B of Hartzell ASB HC‑ASB‑61‑265 (Requirement).","Cross-reference to FAA AD 2003-22-05 (Note 2) introduces reliance on corresponding foreign AD material.","Operational burden concentrated on aircraft operators/owners who fund and schedule inspections and any replacements (Compliance; Requirement 3).","No alternative compliance pathways or complex recordkeeping provisions specified, which reduces procedural complexity."],"plain_english_summary":"This AD requires operators of Hartzell HC‑A6A‑3 propellers fitted with A10460 composite blades to carry out periodic visual and detailed inspections per Hartzell Alert Service Bulletin HC‑ASB‑61‑265 and to remove any cracked blade before further flight. CASA sets the timetable: initial visual inspection within 100 propeller flight hours or 30 days, then every 300 hours; a detailed inspection at each overhaul. Operators/owners pay for inspections, repairs and blade removals and must follow the ASB and AD schedules to remain airworthy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-phzl-80-composite-blades-cracking","history":"/api/acts/ad-phzl-80-composite-blades-cracking/history","analysis":"/api/acts/ad-phzl-80-composite-blades-cracking/analysis","conflicts":"/api/acts/ad-phzl-80-composite-blades-cracking/conflicts","importantCases":"/api/acts/ad-phzl-80-composite-blades-cracking/important-cases","documents":"/api/acts/ad-phzl-80-composite-blades-cracking/documents"}}