{"id":"F2006L00413","name":"AD/F2000/5 - Engine Nacelle Firewalls","slug":"ad-f2000-5-engine-nacelle-firewalls","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":117073,"registerId":"commonwealth-F2006L00413-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Dassault Aviation Falcon 2000 Series Aer","sectionType":"division","heading":"Dassault Aviation Falcon 2000 Series Aeroplanes","content":"### Dassault Aviation Falcon 2000 Series Aeroplanes\n\n| AD/F2000/5 | Engine Nacelle Firewalls | 3/2006 |\n| ---------- | ------------------------ | ------ |\n\n| Applicability: | Model 2000 aircraft; except for aircraft with Dassault Aviation Service BulletinNo. F2000-248 incorporated in service or Dassault Aviation modification M2111 incorporated in production.                                                         |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with DGAC AD 2002-413(B).Note: Dassault Aviation Service Bulletin F2000-248 refers.                                                                                                                                          |\n| Compliance:    | Before 31 March 2006, unless already accomplished.                                                                                                                                                                                                |\n|                | This Airworthiness Directive becomes effective on 16 March 2006.                                                                                                                                                                                  |\n| Background:    | The manufacturer has determined that two manufacturing holes have not been plugged in the left and right engine masts firewalls. In the case of significant fuel leakage at the fuselage-nacelle connection, fuel could drain to a hot zone area. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n2 February 2006","sortOrder":0},{"sectionNumber":"AD/F2000/5","sectionType":"part","heading":"AD/F2000/5","content":"## AD/F2000/5","sortOrder":1},{"sectionNumber":"Engine Nacelle Firewalls","sectionType":"part","heading":"Engine Nacelle Firewalls","content":"## Engine Nacelle Firewalls","sortOrder":2},{"sectionNumber":"3/2006","sectionType":"part","heading":"3/2006","content":"## 3/2006","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope is consistent with the directive’s stated remedial purpose: it targets Model 2000 aircraft with the specific manufacturing omission (unplugged holes in engine‑mast firewalls) and excludes aircraft already modified by SB F2000‑248 or mod M2111 (Applicability; Background). The instrument does not expand beyond that corrective scope."},"complexity_factors":["Narrow applicability but with explicit exceptions: applies to Model 2000 aircraft except those with Service Bulletin F2000‑248 or modification M2111 incorporated (Applicability).","Cross‑reference to a foreign authority/advisory document: mandates action “in accordance with DGAC AD 2002‑413(B)” rather than setting out procedures in full (Requirement).","Fixed compliance deadline imposes time pressure on operators: work required before 31 March 2006 (Compliance).","Technical remedy concerns engine‑mast firewall integrity and fuel drainage to 'hot zone', requiring maintenance/inspection skills (Background).","Low administrative discretion in the directive itself — it sets what to do, who to exclude, and the deadline, leaving implementation details to operators/maintenance organisations."],"plain_english_summary":"This Airworthiness Directive requires operators of Dassault Falcon 2000 aircraft (except those already modified by Service Bulletin F2000‑248 or modification M2111) to carry out the corrective work specified in DGAC AD 2002‑413(B) to seal two unfilled holes in the left and right engine‑mast firewalls. Work must be completed by 31 March 2006. The measure responds to a manufacturer finding that those holes could allow fuel to drain into a hot zone after significant leakage (Background; Requirement; Compliance)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive addressing a specific manufacturing defect in a specific aircraft type. It has not expanded beyond its original safety purpose."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined exceptions to applicability (Service Bulletin F2000-248 or modification M2111)","Single cross-reference to external French aviation directive (DGAC AD 2002-413(B))","No nested conditional logic or layered exceptions","Straightforward compliance deadline with single alternative ('unless already accomplished')","Clear, specific applicability limited to one aircraft model series"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of Dassault Falcon 2000 aircraft to correct a manufacturing defect in the left and right engine mast firewalls that left two plug holes open, risking fuel leakage into hot zones and potential engine fire. Compliance follows the referenced French DGAC AD and Dassault Service Bulletin F2000‑248; affected aircraft without that modification must comply by the directive’s deadline."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f2000-5-engine-nacelle-firewalls","history":"/api/acts/ad-f2000-5-engine-nacelle-firewalls/history","analysis":"/api/acts/ad-f2000-5-engine-nacelle-firewalls/analysis","conflicts":"/api/acts/ad-f2000-5-engine-nacelle-firewalls/conflicts","importantCases":"/api/acts/ad-f2000-5-engine-nacelle-firewalls/important-cases","documents":"/api/acts/ad-f2000-5-engine-nacelle-firewalls/documents"}}