{"id":"F2005L02771","name":"AD/GAZELLE/32 - Goodrich Hoist Pyrotechnic Squibs","slug":"ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":37656,"registerId":"commonwealth-F2005L02771-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter SA341 and SA342 (Gazelle) Ser","sectionType":"division","heading":"Eurocopter SA341 and SA342 (Gazelle) Series Helicopters","content":"### Eurocopter SA341 and SA342 (Gazelle) Series Helicopters\n\n| AD/GAZELLE/32 | Goodrich Hoist Pyrotechnic Squibs | 12/2005 TX |\n| ------------- | --------------------------------- | ---------- |\n\n| Applicability: | SA 341 G and SA 342 J helicopters equipped with a Goodrich electric hoist part number 76370-XXX fitted with any type of electric motor except one manufactured by Auxilec. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| | Note 1: The motor manufacturer is indicated on the identification plate of the motor. |\n| Requirement: | Accomplish the following in accordance with Paragraph 2.B. of Eurocopter SA 341/342 Alert Telex 25.12 or later revision approved by the French Direction Générale de l’Aviation Civile (DGAC): |\n| | a. Inhibit operation of the hoist pyrotechnic squib,b. Install suitable cable cutting shears, andc. Install two warning placards. |\n| | Note 2: DGAC AD UF-2005-161 (EASA Approval 2005-6248) refers. |\n| Compliance: | Before the next hoisting operation after the effective date of this Directive. |\n| | This Airworthiness Directive becomes effective on 21 September 2005. |\n| Background: | Eurocopter has received advice of a squib firing on a AS 355 F2 helicopter without being triggered by either the pilot or the hoist operator. The hoist motor brush power supply wiring was found to be earthed to the casing of the hoist motor. The ground caused leakage current to the squib firing components, which triggered the untimely firing of the squib and cutting of the hoist cable.The same type of hoist is also installed on Gazelle helicopters. Notwithstanding that Gazelle helicopters are fitted with a resistor in the squib circuit capable of absorbing the leakage current energy and thus reducing the risk of untimely firing, it does not guarantee full effectiveness. This Directive requires the firing of the squib to be inhibited, installation of cable cutting shears and the installation of warning placards. |\n\n| | Further rulemaking may be anticipated following development of a suitable modification. |\n| --- | --------------------------------------------------------------------------------------- |\n\n![](image.001.png) \nJames Coyne \nDelegate of the Civil Aviation Safety Authority\n\n19 September 2005","sortOrder":0},{"sectionNumber":"AD/GAZELLE/32","sectionType":"part","heading":"AD/GAZELLE/32","content":"## AD/GAZELLE/32","sortOrder":1},{"sectionNumber":"Goodrich Hoist Pyrotechnic Squibs","sectionType":"part","heading":"Goodrich Hoist Pyrotechnic Squibs","content":"## Goodrich Hoist Pyrotechnic Squibs","sortOrder":2},{"sectionNumber":"12/2005 TX","sectionType":"part","heading":"12/2005 TX","content":"## 12/2005 TX","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The directive limits immediate scope to interim mitigations (inhibit firing, install shears and placards) rather than mandating a permanent design modification. The instrument signals that further rulemaking may follow once a 'suitable modification' is developed, so the present scope is a temporary risk-reduction step pending a future change (Background; Requirement)."},"complexity_factors":["Limited technical scope: three discrete corrective actions (inhibit squib, install cutting shears, fit placards) rather than a design redesign (Requirement).","Conditional applicability: applies only to SA341G/SA342J with Goodrich hoist p/n 76370-XXX and excludes Auxilec motors — requires checking motor identification plate (Applicability; Note 1).","Normative external reference: compliance is tied to Eurocopter Alert Telex 25.12 or later DGAC-approved revision, creating dependency on another document for procedural detail (Requirement; Note 2).","Urgent compliance timing: must be completed before the next hoisting operation, imposing immediate operational and scheduling constraints (Compliance).","Interim measure signal: text contemplates further rulemaking pending a suitable modification, implying this is a temporary mitigation not a final design solution (Background).","Safety rationale tied to electrical leakage and in-circuit resistor performance, creating technical judgement about residual risk and effectiveness (Background)."],"plain_english_summary":"This Airworthiness Directive requires operators of Eurocopter SA341G and SA342J helicopters fitted with Goodrich electric hoists (part 76370-XXX) — except hoists with Auxilec motors — to inhibit the hoist pyrotechnic squib, fit cable‑cutting shears, and install two warning placards in accordance with Eurocopter Alert Telex paragraph 2.B. (Requirement; Applicability). The work must be done before the next hoisting operation after the directive’s effective date because a reported unintended squib firing (caused by leakage current despite an in-circuit resistor) risked untimely cable cutting. (Background; Compliance)."},"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific identified hazard. The scope remains precisely limited to the affected helicopter models and hoist configurations described in the original safety concern."},"complexity_factors":["Very short document (approximately 300 words)","Only 3 specific technical requirements (inhibit squib, install shears, install placards)","Single applicability condition based on helicopter model and hoist part number","One explicit exception (Auxilec motors)","No nested definitions or cross-references to other legislation — only references to a Eurocopter technical bulletin and a French aviation directive","Clear compliance deadline with no conditional extensions or alternative methods"],"plain_english_summary":"This AD requires owners/operators of Eurocopter Gazelle SA 341 G/SA 342 J helicopters with Goodrich electric hoists (except Auxilec‑motor variants) to disable the pyrotechnic cable cutter, fit manual cable‑cutting shears, and install two warning placards—mandatory before hoist use after 21 September 2005.\n\nIt follows an unintended firing on an AS 355 F2 caused by an electrical fault; because the same hoist design could accidentally sever a rescue load, the AD removes the automatic cutter and mandates a manual backup until a permanent fix is developed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs","history":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs/history","analysis":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs/analysis","conflicts":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs/conflicts","importantCases":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs/important-cases","documents":"/api/acts/ad-gazelle-32-goodrich-hoist-pyrotechnic-squibs/documents"}}