{"id":"F2006B08769","name":"AD/DAUPHIN/57 - Engine Air Inlet Sand Filters","slug":"ad-dauphin-57-engine-air-inlet-sand-filters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52085,"registerId":"commonwealth-F2006B08769-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \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 CAR 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\nEurocopter SA 360 and SA 365 (Dauphin) Series Helicopters","sortOrder":0},{"sectionNumber":"AD/DAUPHIN/57 Engine Air Inlet Sand Filt","sectionType":"part","heading":"AD/DAUPHIN/57 Engine Air Inlet Sand Filters 5/2002","content":"# AD/DAUPHIN/57 Engine Air Inlet Sand Filters 5/2002\n\nApplicability: Eurocopter AS 365N, N1, N2 and N3 model helicopters incorporating CENTRISEP engine air inlet sand filters as detailed in Eurocopter Alert Service Bulletin 71.00.14.P5.\n\nRequirement: Inspect the sand filter ejection nozzles for cracks in accordance with Eurocopter Alert Service Bulletin 71.00.14.P5.\n\nNote: DGAC AD 2000-108-050 (A) R2 refers.\n\nCompliance: Effective 16 May 2002; following each last flight of the day.\n\nThis Airworthiness Directive becomes effective on 16 May 2002.\n\nBackground: This Directive has been issued to reflect French DGAC Airworthiness Directive 2000-108-050 (A) R2. The French Directive was issued in response to reports of cracks being found in exhaust ejection nozzles that may result in the loss of a nozzle in flight.\n\n![Signature of Eugene Paul Holzapfel Delegate of the Civil Aviation Safety Authority](image.002.png)  \n\nEugene Paul Holzapfel\n\nDelegate of the Civil Aviation Safety Authority 24 March 2002\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 24 April 2002.","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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope. It addresses a specific safety issue (cracked sand filter ejection nozzles) on a specific aircraft type with specific equipment, exactly as intended when the French authority issued the original directive that this Australian AD adopts."},"complexity_factors":["Very short document (approximately 250 words)","Only 4 defined elements: specific helicopter models, specific filter type, specific service bulletin reference, and specific French AD reference","Single straightforward requirement with no conditional logic or exceptions","No cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1))","Clear, unambiguous compliance deadline ('following each last flight of the day')","Standardised AD format with clearly labelled sections (Applicability, Requirement, Compliance, Background)"],"plain_english_summary":"This safety order requires owners/operators of Eurocopter AS 365N/N1/N2/N3 Dauphin helicopters fitted with CENTRISEP engine air inlet sand filters to inspect the sand filter ejection nozzles for cracks after each day's last flight, per Eurocopter Alert SB 71.00.14.P5. \n\nCracked nozzles can detach in flight; the directive mirrors a French AD and compliance is legally mandatory under Australian aviation safety law (effective 16 May 2002)."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD adopts the scope and corrective action set out in the French DGAC AD R2 and applies only to the specified AS365 models with CENTRISEP filters; it does not expand the affected fleet or the corrective requirement beyond the referenced DGAC directive (Background; Applicability; Requirement)."},"complexity_factors":["Narrow technical applicability: limited to AS365 N-series helicopters fitted with CENTRISEP sand filters (Applicability).","Dependence on an external technical document: compliance requires following Eurocopter Alert Service Bulletin 71.00.14.P5 (Requirement).","High-frequency operational burden: inspections must be carried out after each last flight of the day, increasing daily maintenance tasks and potential aircraft downtime (Compliance).","Regulatory alignment: the AD implements the French DGAC AD 2000-108-050 (A) R2, so it follows foreign authority findings rather than introducing new technical criteria (Background).","Delegated enforcement basis: issued under subregulation 39.1(1) of CAR 1998 by a CASA delegate, indicating administrative discretion in issuance (first paragraph/signature)."],"plain_english_summary":"Requires operators of Eurocopter AS365 N/N1/N2/N3 helicopters fitted with CENTRISEP engine air inlet sand filters to inspect the sand filter ejection nozzles for cracks, following Eurocopter Alert Service Bulletin 71.00.14.P5. Inspections must be performed after each aircraft's last flight of the day, effective 16 May 2002. The directive mirrors a French DGAC AD issued after reports of nozzle cracks that could cause in‑flight loss."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters","history":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters/history","analysis":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters/analysis","conflicts":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters/conflicts","importantCases":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters/important-cases","documents":"/api/acts/ad-dauphin-57-engine-air-inlet-sand-filters/documents"}}