{"id":"F2007L00460","name":"AD/ARTOUSTE/7 - Engine Driven Fuel Pump","slug":"ad-artouste-7-engine-driven-fuel-pump","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":63634,"registerId":"commonwealth-F2007L00460-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Turbomeca Turbine Engines - Artouste Ser","sectionType":"division","heading":"Turbomeca Turbine Engines - Artouste Series","content":"### Turbomeca Turbine Engines - Artouste Series\n\n| AD/ARTOUSTE/7 | Engine Driven Fuel Pump | 4/2007 TX |\n| ------------- | ----------------------- | --------- |\n\n| Applicability: | Turbomeca ARTOUSTE III B, III B1 and III D turboshaft engines.Note 1: These engines are fitted to but may not be limited to Eurocopter ALOUETTE III (SE 3160 / SA 316 B) and LAMA (SA 315 B) helicopters.                                                                                                                                                                                                                                                         |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. For fuel pumps listed in Appendix 1 (Inspection to be performed) of Turbomeca Mandatory Service Bulletin No. 218 73 0802 Update 1, or later DGAC approved revision, check the pump in accordance with the instructions detailed in Turbomeca MSB No. 218 73 0802 Update 1 or later DGAC approved revision.2. Replace the pump with a serviceable pump if it cannot meet the approved maximum fuel flow.Note 2: EASA AD 2007-0030 dated 6 February 2007 refers. |\n| Compliance:    | Before 1 March 2007.                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n|                | This Airworthiness Directive becomes effective on 21 February 2007.                                                                                                                                                                                                                                                                                                                                                                                               |\n| Background:    | An audit of fuel pump acceptance test facility revealed evidence of calibration issues. Consequently certain pumps may not be able to deliver maximum fuel flows under certain flight conditions.                                                                                                                                                                                                                                                                 |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n16 February 2007","sortOrder":0},{"sectionNumber":"AD/ARTOUSTE/7","sectionType":"part","heading":"AD/ARTOUSTE/7","content":"## AD/ARTOUSTE/7","sortOrder":1},{"sectionNumber":"Engine Driven Fuel Pump","sectionType":"part","heading":"Engine Driven Fuel Pump","content":"## Engine Driven Fuel Pump","sortOrder":2},{"sectionNumber":"4/2007 TX","sectionType":"part","heading":"4/2007 TX","content":"## 4/2007 TX","sortOrder":3}],"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":2,"scope_assessment":{"changed":false,"description":"The AD is narrowly targeted to a specific safety concern: potentially under‑performing engine‑driven fuel pumps on specified Artouste engine variants. It requires inspection according to a manufacturer MSB and replacement if the pump fails to meet maximum fuel flow. There is no material expansion beyond that original safety purpose in the text provided — the measure remains limited in subject, population (specified engine models), and remedies (inspect and replace)."},"complexity_factors":["Short, single‑issue directive (inspection + replacement)","1 clear applicability statement (Artouste III B, III B1, III D engines)","Single external technical cross‑reference: Turbomeca MSB No. 218 73 0802 Update 1 (and Appendix 1)","Reference to later DGAC‑approved revisions introduces minor conditionality","Reference to an equivalent EASA AD (cross‑jurisdictional note)","Two deadlines/dates (effective date and compliance deadline)"],"plain_english_summary":"**What this instrument does (mechanically)**\n\n- It requires operators of Turbomeca Artouste III B, III B1 and III D turboshaft engines to inspect certain engine-driven fuel pumps. The pumps to be inspected are those listed in Appendix 1 of Turbomeca Mandatory Service Bulletin (MSB) No. 218 73 0802 Update 1 (or any later revision approved by the French DGAC).\n- The inspection must follow the step‑by‑step instructions in that Turbomeca MSB. If a pump cannot meet the approved maximum fuel flow when checked, it must be replaced with a serviceable pump.\n- The inspection and any required replacements had to be completed before 1 March 2007. The AD became effective on 21 February 2007.\n\n**Who is affected**\n\n- Owners and operators of aircraft powered by the specified Turbomeca Artouste III B, III B1 and III D engines. The AD notes that these engines are, but may not be limited to, fitted to Eurocopter Alouette III and Lama helicopters.\n- Maintenance organisations and independent maintenance providers who service these engines and fuel pumps.\n- Parts suppliers / pump manufacturers who supply replacement pumps or perform flow calibration.\n\n**Why it matters (stated reason, and practical implications)**\n\n- Stated reason: an audit of a fuel‑pump acceptance test facility found calibration issues. Some pumps might not deliver the approved maximum fuel flow under certain flight conditions, which could affect engine performance.\n- Practical effect: operators must perform a one‑time inspection on the listed pumps and replace any that fail to meet flow requirements. This is a targeted safety action intended to ensure engines can receive required fuel flow.\n\n**Who pays, who decides, and how behaviour changes**\n\n- Who pays: the immediate cost falls on aircraft owners/operators (inspection labour, possible replacement pump cost, and aircraft downtime). Maintenance organisations incur labour costs and may charge for testing/repairs. Parts suppliers benefit from demand for replacement pumps.\n- Who decides: the regulator (Civil Aviation Safety Authority delegate issued the AD) mandates compliance; the specific inspection/replacement procedure is set by the aircraft engine manufacturer’s (Turbomeca’s) Mandatory Service Bulletin and any later DGAC‑approved revisions.\n- Behaviour change: operators must prioritise and schedule the mandated inspections/replacements ahead of the stated deadline; maintenance providers must follow the MSB instructions when carrying out the checks.\n\n**Trade‑offs, compliance burden and implementation risks**\n\n- Compliance burden: the directive imposes a short‑term administrative and maintenance burden — scheduling inspections, performing the MSB procedures, and replacing non‑conforming pumps. The burden is concentrated on the relatively small group of operators with the specified Artouste engines.\n- Costs and opportunity cost: direct costs are inspection labour, testing equipment use, replacement pump parts and aircraft downtime. Time‑sensitive compliance (about a week between effective date and compliance deadline) can increase short‑term scheduling costs and may cause temporary aircraft unavailability.\n- Supply/implementation risk: if a significant number of pumps fail the flow test, operators may face limited immediate availability of serviceable replacement pumps, increasing grounding risk or repair lead times. The AD references the MSB and DGAC approvals rather than setting an independent test standard, so effective implementation depends on the MSB’s clarity and the ability of maintenance providers to reproduce the required checks.\n- Incentives and distributional effects: benefits (reduced risk of fuel‑flow related engine performance problems) are broadly diffuse across aircraft occupants and operators; costs are concentrated on the affected operators and maintenance providers. Maintenance and parts suppliers may see increased short‑term business (concentrated benefit).\n\n**Relation to other regulatory material**\n\n- The AD cross‑references Turbomeca MSB No. 218 73 0802 Update 1 (or later DGAC‑approved revisions) for the technical procedure and Appendix 1 for the list of pumps to inspect. It also refers to an equivalent EASA AD (2007‑0030 dated 6 February 2007).\n\n(References: Requirement paragraphs 1–2; Compliance and Background paragraphs in the AD text provided.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted airworthiness directive addressing a specific manufacturing defect in specific engine models. The scope remains precisely limited to the fuel pump calibration issue identified in the background section."},"complexity_factors":["Very short document (approximately 200 words of substantive content)","Only 3 defined applicability categories (specific engine models)","Single compliance deadline with no conditional exceptions","Two straightforward requirements: inspect, then replace if failed","Minimal cross-referencing (only one external document reference to EASA AD and one manufacturer service bulletin)","No nested conditions, sub-delegations, or interpretive provisions"],"plain_english_summary":"This AD requires owners/operators of Turbomeca ARTOUSTE III B/B1/D engines (notably on Eurocopter Alouette III and Lama helicopters) to inspect—and if necessary replace—their fuel pumps because factory test calibration faults may cause inadequate fuel flow and possible engine failure.  \n\nWork must be completed before 1 March 2007 to mitigate the risk of in-flight engine stoppage."}},"importantCases":[],"_links":{"self":"/api/acts/ad-artouste-7-engine-driven-fuel-pump","history":"/api/acts/ad-artouste-7-engine-driven-fuel-pump/history","analysis":"/api/acts/ad-artouste-7-engine-driven-fuel-pump/analysis","conflicts":"/api/acts/ad-artouste-7-engine-driven-fuel-pump/conflicts","importantCases":"/api/acts/ad-artouste-7-engine-driven-fuel-pump/important-cases","documents":"/api/acts/ad-artouste-7-engine-driven-fuel-pump/documents"}}