{"id":"F2006L03842","name":"AD/ECUREUIL/99 Amdt 1 - Lateral Cargo Hold Doors","slug":"ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":137717,"registerId":"commonwealth-F2006L03842-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 350 (Ecureuil) Series Heli","sectionType":"division","heading":"Eurocopter AS 350 (Ecureuil) Series Helicopters","content":"### Eurocopter AS 350 (Ecureuil) Series Helicopters\n\n| AD/ECUREUIL/99 Amdt 1 | Lateral Cargo Hold Doors | 13/2006 |\n| --------------------- | ------------------------ | ------- |\n\n| Applicability: | Model EC 130 B4 helicopters, equipped with one or two lateral cargo hold doors not modified per MOD 073542 and not in compliance with Eurocopter EC 130 Service Bulletin No. 52-005.                                                                                                                                                                                                                                                                                                                                                  |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Key-lock the centre lock of the left and right lateral cargo hold doors in accordance with paragraph 1.E.2.a of Eurocopter EC 130 Alert Service Bulletin No. 04A001.Note: DGAC AD F-2004-066 R1 refers.                                                                                                                                                                                                                                                                                                                               |\n| Compliance:    | Prior to each flight after 14 May 2004.The compliance time remains unchanged by this issue.                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n|                | This Amendment becomes effective on 21 December 2006.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |\n| Background:    | During a flight test at the manufacturer’s facility, the centre lock of the lateral cargo hold door unlatched. Unlocking of the centre lock in flight, combined with aerodynamic loads, could lead to failure of the lateral lock and result in loss of the cargo hold door.Amendment 1 is issued in response to a revision of the related DGAC AD, which clarifies applicability and converts the Alert Telex Requirement document into an Alert Service Bulletin with the same reference number and no change to technical content. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n7 November 2006","sortOrder":0},{"sectionNumber":"AD/ECUREUIL/99 Amdt 1","sectionType":"part","heading":"AD/ECUREUIL/99 Amdt 1","content":"## AD/ECUREUIL/99 Amdt 1","sortOrder":1},{"sectionNumber":"Lateral Cargo Hold Doors","sectionType":"part","heading":"Lateral Cargo Hold Doors","content":"## Lateral Cargo Hold Doors","sortOrder":2},{"sectionNumber":"13/2006","sectionType":"part","heading":"13/2006","content":"## 13/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"Amendment 1 clarifies which EC 130 B4 helicopters are covered and converts the original Alert Telex/requirement into an Alert Service Bulletin with the same reference number, while leaving the underlying technical requirement (key‑locking the centre locks) unchanged (Background)."},"complexity_factors":["Narrow, model‑specific applicability with explicit exclusions (Applicability)","Mandatory, recurring pre‑flight action creates operational and labour burden (Compliance)","Requirement cross‑references an external document and a specific paragraph (Alert Service Bulletin No. 04A001, para 1.E.2.a) which users must obtain (Requirement)","Amendment clarifies applicability and document form but leaves technical content unchanged (Background) — potential for confusion about effective dates","Simple mechanical mitigant (key‑locking) reduces technical complexity despite procedural recurrence","Regulatory enforceability is direct and leaves little administrative discretion"],"plain_english_summary":"This airworthiness directive requires operators of Eurocopter EC 130 B4 helicopters fitted with one or two lateral cargo hold doors (unless modified by MOD 073542 or already compliant with SB No.52‑005) to key‑lock the centre lock on both left and right cargo doors before each flight, following Eurocopter Alert Service Bulletin No. 04A001 (Requirement; Applicability). Operators or their maintenance organisations must perform this recurring pre‑flight action and bear any costs; the amendment clarifies which aircraft are covered and converts the original alert into a service bulletin without changing the technical fix (Background; Compliance)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope. It is purely administrative — updating references to match a revised French aviation directive and converting document formats (telex to service bulletin). The technical requirement, affected aircraft, and compliance deadline remain identical to the original AD/ECUREUIL/99."},"complexity_factors":["Single, specific technical requirement (key-locking a latch)","Only one defined applicability criterion (specific helicopter model with specific door configuration)","No nested exceptions or conditional logic — either your helicopter is affected or it isn't","Cross-reference to only one external technical document (Eurocopter Alert Service Bulletin 04A001)","Very short document (approximately 200 words of substantive content)","Clear, unambiguous compliance deadline (prior to each flight)"],"plain_english_summary":"This AD requires operators of Eurocopter EC130 B4 helicopters with unmodified lateral cargo doors to manually lock the centre latch on both side cargo doors with the key-lock before every flight. It prevents in‑flight centre‑lock release that could let a door be ripped off, risking people and the aircraft. The requirement has applied since 14 May 2004; this amendment aligns CASA with the French DGAC administratively."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors","history":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors/history","analysis":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors/analysis","conflicts":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors/conflicts","importantCases":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors/important-cases","documents":"/api/acts/ad-ecureuil-99-amdt-1-lateral-cargo-hold-doors/documents"}}