{"id":"F2006B09354","name":"AD/ECUREUIL/49 - Lucas Air Equipment Hoist - Explosive Squib","slug":"ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":53596,"registerId":"commonwealth-F2006B09354-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/ECUREUIL/49 - Lucas Air Equipment Hoist - Explosive Squib","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nEurocopter AS 350 (Ecureuil) Series Helicopters\n\nAD/ECUREUIL/49 Lucas Air Equipment Hoist \\- Explosive Squib 12/92\n\nApplicability: All AS 350 series helicopters, listed in the requirement document, fitted with Lucas Air Equipment hoist part number 76370 (all models) with serial numbers up to and including 494.\n\nRequirement: Action in accordance with Eurocopter France Service Bulletin No 25.46 dated 25 May 1992.\n\nCompliance: Installed Hoists \\- Prior to the first hoisting mission after 12 November 1992, where a pyrotechnic squib is installed (AD/SUPP/12 refers), but no later than 31 December 1992.\n\nSpare Hoists \\- Prior to installation.\n\nBackground: Eurocopter have advised that the possibility exists that the hoist squib may be incorrectly connected. Compliance with this Directive is necessary to ensure that the pyrotechnic squib will fire correctly when required.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1433},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive maintains its original narrow technical scope, addressing only the specific wiring defect in Lucas hoists installed on AS 350 helicopters. It has not expanded beyond this particular safety issue."},"complexity_factors":["Single technical requirement incorporating external document by reference (Eurocopter Service Bulletin 25.46)","Narrow applicability limited to specific part number and serial number range","Dual compliance pathways distinguishing between installed equipment and spare parts","One cross-reference to related directive AD/SUPP/12 regarding pyrotechnic devices"],"plain_english_summary":"**What this is:** A safety order requiring helicopter operators to fix a wiring problem in rescue hoists.\n\n**Who it affects:** Operators of Eurocopter AS 350 (Squirrel) helicopters fitted with Lucas Air Equipment hoists (part number 76370 with serial numbers 494 and below).\n\n**The problem:** The explosive charge (called a \"squib\") that helps deploy the emergency hoist might be incorrectly connected. If wired wrong, the hoist might not work during a rescue mission.\n\n**What must be done:** Follow the manufacturer's technical instructions (Eurocopter Service Bulletin No 25.46) to check and correct the wiring.\n\n**Deadlines:**\n- **For hoists already installed:** Before the first rescue mission after 12 November 1992, but definitely before 31 December 1992\n- **For spare hoists:** Before they are fitted to any helicopter\n\n**Why it matters:** This ensures the explosive release mechanism works properly in an emergency, preventing situations where a rescue hoist fails to deploy."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib","history":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib/history","analysis":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib/analysis","conflicts":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib/conflicts","importantCases":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib/important-cases","documents":"/api/acts/ad-ecureuil-49-lucas-air-equipment-hoist-explosive-squib/documents"}}