{"id":"F2006B08782","name":"AD/DAUPHIN/75 - Fire Protection - Engine Fire Extinguishers","slug":"ad-dauphin-75-fire-protection-engine-fire-extinguishers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52114,"registerId":"commonwealth-F2006B08782-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\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\nEurocopter SA 360 and SA 365 (Dauphin) Series Helicopters","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/75 Fire Protection - Engine F","sectionType":"part","heading":"AD/DAUPHIN/75 Fire Protection - Engine Fire Extinguishers 1/2005","content":"# AD/DAUPHIN/75 Fire Protection \\- Engine Fire Extinguishers 1/2005\n\nApplicability: SA 365 N and N1 and AS 365 N2 and N3 helicopters, all serial numbers, fitted with engine fire extinguishers part number (PN) 862780-00 pre-MOD 0726B22.\n\nRequirement: 1. Weigh the engine fire extinguishers in compliance with the instructions specified in paragraph 2.B.2. of EUROCOPTER AS 365 Alert Service Bulletin (ASB) No.\n\n05.00.46. or later DGAC approved revisions.\n\n    2. During the next proof test to be performed, take the actions described in paragraph 2.B.3. of the referenced ASB (corresponds to MOD 0726B22).\n\n    3. For engine fire extinguisher PN 862780-00 held as spares:\n\n    (a) Comply with the instructions specified in paragraph 2.B.2. of the referenced ASB.\n\n    (b) Comply with the instructions specified in paragraph 2.B.3. of the referenced ASB.\n\nNote: DGAC AD F-2004-179 EASA reference No 2004-10844 dated 3 November 2004 refers.\n\nCompliance: 1. Within 110 flying hours or 2 months from the effective date of this Directive, whichever occurs first, thereafter at intervals exceeding 6 months pending compliance with Requirement 2 of this Directive.\n\n    2. Within 5 years following manufacture or the last proof test.\n\n    3. (a) Before installation on the helicopter.\n\n(b) During the next proof test to be performed, within 5 years following manufacture or the last proof test.\n\nThis Airworthiness Directive becomes effective on 20 January 2005.","sortOrder":1}],"analysis":{"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"No. The AD adopts corrective measures for the specified extinguisher part and models as set out in the referenced EUROCOPTER ASB and the noted DGAC/EASA AD; it does not expand applicability beyond those helicopters or add obligations other than the timing and procedural compliance set out in the Requirement and Compliance sections (Applicability; Requirement; Compliance; Note)."},"complexity_factors":["Cross-reference to external technical material (EUROCOPTER AS 365 ASB No. 05.00.46) and an overseas AD (DGAC F-2004-179 / EASA 2004-10844) increases reliance on other documents for full instructions (Requirement; Note).","Multiple, overlapping compliance timeframes (e.g. within 110 flight hours or 2 months; intervals until Requirement 2; within 5 years of manufacture/last proof test) create scheduling complexity for operators (Compliance).","Narrow applicability to specific helicopter models and a particular part number (PN 862780-00 pre‑MOD 0726B22) requires record checks and tracking of serials, manufacture and proof‑test dates (Applicability; Requirement 3).","Separate handling instructions for installed units versus spares (spares must be complied with before installation) add logistics and inventory-control burden (Requirement 3; Compliance 3).","Technical actions include weighing and proof testing (distinct procedures) which may require specialised maintenance capability or outsourced service and associated costs (Requirement 1–2; Compliance 2).","Mandatory issuance under CASA subregulation creates no discretionary opt‑out for affected operators—noncompliance has regulatory consequences (preamble: CASA delegate; CASR subregulation 39.1(1)).","References to a modification (MOD 0726B22) and to specific ASB paragraphs (2.B.2 and 2.B.3) mean implementers must interpret technical change records to confirm applicability and corrective steps (Requirement)."],"plain_english_summary":"This Airworthiness Directive requires operators of Eurocopter SA/AS 365 Dauphin helicopters fitted with engine fire extinguisher PN 862780-00 (pre‑MOD 0726B22) to weigh and proof‑test those extinguishers and follow the actions in EUROCOPTER AS 365 Alert Service Bulletin No. 05.00.46. It applies to installed units and spares. Operators and maintenance organisations must pay for and schedule the inspections and any corrective work; CASA issued the directive under CASR subregulation 39.1(1) and sets the specific compliance timeframes."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard Airworthiness Directive maintaining its original purpose: addressing a specific unsafe condition in particular helicopter fire extinguisher models. The scope remains tightly focused on the identified safety issue without expansion into unrelated areas."},"complexity_factors":["Short, single-purpose directive with clear applicability criteria","Only 3 main requirements with straightforward compliance timelines","References external technical documents (Eurocopter Service Bulletin) rather than reproducing complex instructions","Simple conditional logic (whichever occurs first) in compliance section","No nested definitions or extensive cross-referencing within the instrument itself","Limited to specific part numbers and serial number ranges"],"plain_english_summary":"Owners/operators of certain Eurocopter Dauphin helicopters (SA/AS 365 N, N1, N2, N3) must inspect and service engine fire extinguishers made before a specified design change. The AD requires regular weight checks shortly and every six months until a full proof test and modification are completed, and mandates the full service within five years of manufacture/last test (including spares before installation). It prevents extinguisher failures or inadvertent discharge that could compromise fire suppression and flight safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers","history":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers/history","analysis":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers/analysis","conflicts":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers/conflicts","importantCases":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers/important-cases","documents":"/api/acts/ad-dauphin-75-fire-protection-engine-fire-extinguishers/documents"}}