{"id":"F2006B01836","name":"AD/A109/52 - Cargo Hook Installation","slug":"ad-a109-52-cargo-hook-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41034,"registerId":"commonwealth-F2006B01836-current","compilationNumber":null,"startDate":"2026-04-01","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\nAgusta A109 Series Helicopters","sortOrder":0},{"sectionNumber":"AD/A109/52 Cargo Hook Installation 9/200","sectionType":"part","heading":"AD/A109/52 Cargo Hook Installation 9/2004 TX","content":"# AD/A109/52 Cargo Hook Installation 9/2004 TX\n\nApplicability: All Model A109E helicopters equipped with cargo hook part number 109-0810-31- 133.\n\nRequirement: Action in accordance with Agusta Technical Bulletin No. 109EP-45, dated 23 June 2004.\n\nNote: ENAC AD 2004-271 refers.\n\nCompliance: Within 5 flight hours after 6 July 2004.\n\nThis Airworthiness Directive becomes effective on 6 July 2004.\n\nBackground: A Model 109E helicopter has suffered an uncommanded release of cargo attached to the cargo hook. Investigation revealed that the cargo emergency jettison release mechanism had been incorrectly rigged.\n\n![](image.002.png)  \n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority 5 July 2004\n\n![](image.001.png)","sortOrder":1}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific unsafe condition in a specific aircraft type. It has not expanded beyond its original purpose of mandating a safety fix for the cargo hook rigging issue."},"complexity_factors":["Single, specific applicability criterion (one helicopter model with one specific part number)","Single requirement referencing an external technical document (Agusta Technical Bulletin)","Simple compliance deadline (5 flight hours after a fixed date)","No defined terms section","No cross-references to other legislation beyond the enabling regulation (CASR 1998 subreg 39.1(1))","Straightforward background explaining one specific safety incident"],"plain_english_summary":"This is a safety order (called an 'Airworthiness Directive') issued by Australia's aviation safety regulator (CASA) for a specific helicopter model. It requires owners or operators of Agusta A109E helicopters with a particular cargo hook part to fix a dangerous rigging problem. The problem caused a helicopter to accidentally drop its cargo mid-flight. The fix must be done following Agusta's technical instructions within 5 hours of flying time after 6 July 2004."},"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope matches its stated safety objective: it targets A109E helicopters fitted with the specific cargo hook and mandates corrective action per the manufacturer's bulletin. The instrument does not expand applicability beyond the identified part/model or broaden regulatory obligations beyond the single corrective requirement."},"complexity_factors":["Narrow technical applicability — only Agusta A109E helicopters with cargo hook P/N 109-0810-31-133 (Applicability).","Mandated action refers to an external manufacturer document — Agusta Technical Bulletin No. 109EP-45 (Requirement).","Very short compliance window — within 5 flight hours after 6 July 2004 (Compliance), increasing scheduling pressure.","Safety-critical rigging adjustment — incorrect rigging produced an uncommanded jettison (Background), raising operational risk if not addressed.","Regulatory delegation — issued by CASA under CASR 1998 subreg 39.1(1), leaving limited administrative discretion on applicability and timing.","Potential operational downtime and direct costs to operators for inspection, adjustment, and verification work."],"plain_english_summary":"This Airworthiness Directive requires operators of Agusta A109E helicopters fitted with cargo hook P/N 109-0810-31-133 to carry out the corrective work in Agusta Technical Bulletin No. 109EP-45 (23 June 2004) within 5 flight hours of 6 July 2004. CASA issued it under CASR 1998 subreg 39.1(1) after an uncommanded cargo jettison linked to incorrect rigging; affected operators pay compliance costs, must change maintenance/rigging practices, and may face short operational disruption."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a109-52-cargo-hook-installation","history":"/api/acts/ad-a109-52-cargo-hook-installation/history","analysis":"/api/acts/ad-a109-52-cargo-hook-installation/analysis","conflicts":"/api/acts/ad-a109-52-cargo-hook-installation/conflicts","importantCases":"/api/acts/ad-a109-52-cargo-hook-installation/important-cases","documents":"/api/acts/ad-a109-52-cargo-hook-installation/documents"}}