{"id":"F2006L02496","name":"AD/AS 355/76 Amdt 1 - Hoist Hooks","slug":"ad-as-355-76-amdt-1-hoist-hooks","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":59697,"registerId":"commonwealth-F2006L02496-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 355 (Twin Ecureuil) Series","sectionType":"division","heading":"Eurocopter AS 355 (Twin Ecureuil) Series Helicopters","content":"### Eurocopter AS 355 (Twin Ecureuil) Series Helicopters\n\n| AD/AS 355/76 Amdt 1 | Hoist Hooks | 9/2006 |\n| ------------------- | ----------- | ------ |\n\n| Applicability: | Model AS 355 E, F, F1, F2, and N helicopters equipped withGoodrich (Lucas-Air Equipment) hoists, part numbers:76300-xxx, 76340-xxx, 76360-xxx, 76360-xxx-xx, 76363-xxx, 76365-xxx,76368-xxx, 76370-xxx, 76375-xxx, and 76378-xxx, andfitted with hooks part numbers:704160, 708223, 708931, 709866, and 710177.Note: The hooks concerned are not fitted with a tongue locking system. |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Accomplish the operational procedure, and the restriction prohibiting the use of straps, in accordance with the instructions specified in paragraph 2.A. of Eurocopter Alert Service Bulletin No. 01.00.49.2. Accomplish the instructions specified in paragraph 2.B. of Eurocopter Alert Service Bulletin No. 01.00.49.Note: EASA AD 2006-0098 refers.                            |\n| Compliance:    | 1. Before each hoisting operation.2. Within 2 months after 7 April 2004.The compliance time remains unchanged by this issue.                                                                                                                                                                                                                                                          |\n|                | This Amendment becomes effective on 31 August 2006.                                                                                                                                                                                                                                                                                                                                   |\n| Background:    | This Directive was prompted by a case of incorrect positioning of the strap on the hoist hook during a hoisting mission, which led to distortion of the tongue and resulted in the release of the stretcher containing an injured person.                                                                                                                                             |\n\n|     | Amendment 1 is issued in response to a new EASA AD, which converts the Requirement document to an Alert Service Bulletin with the same reference number, and no change to the technical content. |\n| --- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n20 July 2006","sortOrder":0},{"sectionNumber":"AD/AS 355/76 Amdt 1","sectionType":"part","heading":"AD/AS 355/76 Amdt 1","content":"## AD/AS 355/76 Amdt 1","sortOrder":1},{"sectionNumber":"Hoist Hooks","sectionType":"part","heading":"Hoist Hooks","content":"## Hoist Hooks","sortOrder":2},{"sectionNumber":"9/2006","sectionType":"part","heading":"9/2006","content":"## 9/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Amendment 1 does not change the technical scope or compliance times; it converts the Requirement document into an Alert Service Bulletin reference while retaining the same technical instructions and obligations (Amendment note; Compliance)."},"complexity_factors":["Narrow applicability to specific AS 355 models and enumerated Goodrich hoist and hook part numbers (Applicability).","Immediate operational checks required before each hoisting operation, imposing ongoing operational burden (Compliance: before each hoisting operation).","A retrospective one‑time compliance deadline for existing installations (within 2 months after 7 April 2004) creates scheduling and compliance timing pressure (Compliance).","Prescriptive prohibition on use of straps and required procedures in Eurocopter Alert Service Bulletin No. 01.00.49 / 01.00.49.2 (Requirement: para 2.A & 2.B).","Safety rationale is incident‑driven (Background) — technical change is limited, but operational discipline and training are required.","Administrative amendment converts the Requirement document into an Alert Service Bulletin reference with no technical change (Amendment note).","Reliance on an Alert Service Bulletin for technical instructions can create variability in operator interpretation and enforcement (Requirement/Amendment)."],"plain_english_summary":"This directive requires operators of Eurocopter AS 355 E/F/F1/F2/N helicopters fitted with specified Goodrich hoists and the listed hooks (which lack a tongue‑locking system) to follow the operational procedure and stop using straps as set out in Eurocopter Alert Service Bulletin No. 01.00.49/01.00.49.2, with checks before each hoisting operation and a one‑time compliance within two months after 7 April 2004. Amendment 1 only updates the Requirement into an Alert Service Bulletin reference without changing technical content; it was prompted by an incident where incorrect strap positioning distorted a hook tongue and released a stretcher."},"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 Amendment 1 to an existing directive. The amendment explicitly states it makes 'no change to the technical content' — it only converts the reference document type from one format to another (per a new European Aviation Safety Agency directive). The scope remains limited to hoist hook safety on specific AS 355 helicopter models."},"complexity_factors":["Very short document (under 500 words)","Only 2 substantive requirements with clear deadlines","Minimal defined terms (only standard aviation abbreviations like AD, EASA, CASA)","No nested exceptions or conditional logic","Single cross-reference to Eurocopter Alert Service Bulletin 01.00.49","Straightforward applicability table using part numbers"],"plain_english_summary":"This Airworthiness Directive mandates safety procedures for Eurocopter AS355 (E/F/F1/F2/N) helicopters equipped with certain Goodrich rescue hoist hooks that lack a tongue-locking system. It requires a prescribed pre-hoist operational check and prohibits using straps with those hooks, and it incorporated earlier manufacturer instructions (compliance deadline already passed).\n\nIt affects operators conducting rescues—emergency services, SAR, and offshore crews—and prevents strap slippage and potential falls. The 2006 amendment only updates a paperwork reference, not the safety steps."}},"importantCases":[],"_links":{"self":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks","history":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks/history","analysis":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks/analysis","conflicts":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks/conflicts","importantCases":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks/important-cases","documents":"/api/acts/ad-as-355-76-amdt-1-hoist-hooks/documents"}}