{"id":"F2006L01024","name":"AD/F2000/11 - Flap Jackscrew","slug":"ad-f2000-11-flap-jackscrew","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":58300,"registerId":"commonwealth-F2006L01024-current","compilationNumber":null,"startDate":"2026-04-02","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/F2000/11 | Flap Jackscrew | 5/2006 |\n| ----------- | -------------- | ------ |\n\n| Applicability: | Dassault Falcon 2000 aeroplanes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Carry out a check of the flap asymmetry protection system in accordance with Maintenance Manual (MM) procedure 27-502.2. Carry out a check of the inboard flap jackscrews P/N 5318-1 new or revised (see note) nut/screw play.3. Replace the inboard flap inboard jackscrews P/N 5318-1 new or revised.4. Replace the inboard flap outboard jackscrews P/N 5318-1 new or revised.5. Do not swap actuators between inboard flap inboard position and the inboard flap outboard position.6. Carry out a check of the outboard jackscrews (P/N 1-5319-1 (LH), 2-5319-1 (RH)) and outboard jackscrews (P/N 5318-1) nut/screw play in accordance with MM procedure 27-504.Note 1: Jackscrews P/N 5318-1 can be revised only one time according to service bulletin AVIAC 5318-27-01. They are identified by amendment a and letter R engraved after the serial number.Note 2: P/N 5318-1 jackscrews can be replaced by P/N 5318-2 or -3 whose limitations are detailed in MM chapter 5.40.Note 3: DGAC AD 1999-038-008(B) R1 refers. |\n| Compliance:    | 1. Within 5 flights after the effective date of this AD unless previously accomplished, thereafter at intervals not to exceed 330 flight hours or 7 months, whichever occurs first.2. Within 25 flights after the effective date of this AD for jackscrews that accumulated more than 750 flights, unless previously accomplished.3. Within 25 flights after the effective date of this AD for jackscrews that accumulated more than 1000 flights, unless previously accomplished.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |\n\n|             | 4. Within 25 flights after the effective date of this AD for jackscrews that accumulated more than 2200 flights, unless previously accomplished.5. From the effective date of this AD.6. Within 25 flights after the effective date of this AD for jackscrews that accumulated more than 1000 flights, unless previously accomplished, thereafter at intervals not to exceed 330 flight hours or 7 months, whichever occurs first. |\n| ----------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This Airworthiness Directive becomes effective on 11 May 2006.                                                                                                                                                                                                                                                                                                                                                                     |\n| Background: | Flap jackscrew jamming can cause an asymmetric flap situation which will result in reduced roll control of the aeroplane.                                                                                                                                                                                                                                                                                                          |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n17 March 2006","sortOrder":0},{"sectionNumber":"AD/F2000/11","sectionType":"part","heading":"AD/F2000/11","content":"## AD/F2000/11","sortOrder":1},{"sectionNumber":"Flap Jackscrew","sectionType":"part","heading":"Flap Jackscrew","content":"## Flap Jackscrew","sortOrder":2},{"sectionNumber":"5/2006","sectionType":"part","heading":"5/2006","content":"## 5/2006","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"Scope is limited to Dassault Falcon 2000 aeroplanes and targets flap jackscrew and flap asymmetry protection system safety actions. The instrument references prior DGAC guidance and places detailed inspection/replacement requirements on operators, but does not expand applicability beyond the stated aeroplane type or add unrelated systems."},"complexity_factors":["Multiple, specific part numbers and permitted replacements (P/N 5318-1, 5318-2, 5318-3, 1-5319-1, 2-5319-1) increase part-tracking and procurement complexity (Requirement, Note 2).","Different actions and compliance windows tied to accumulated flight counts (e.g. >750, >1000, >2200 flights) and a short initial check window (5–25 flights) raise scheduling complexity (Compliance).","Recurring inspection interval requirement (every 330 flight hours or 7 months) creates ongoing maintenance burden (Compliance).","Mandated use of specific Maintenance Manual procedures (MM 27-502.2 and MM 27-504) imposes procedural compliance and reliance on OEM documentation (Requirement).","A prohibition on swapping actuators between inboard/outboard positions imposes operational constraints during repairs (Requirement 5).","Limited jackscrew revision allowance (single revision per service bulletin AVIAC 5318-27-01) and cross-reference to MM chapter 5.40 create conditional replacement rules (Note 1, Note 2).","Reference to a foreign AD (DGAC AD 1999-038-008(B) R1) introduces potential coordination or interpretation issues for international operators (Note 3).","Short effective date and enforcement by CASA (effective 11 May 2006) compress time available to comply and plan logistics (Compliance; effective date)."],"plain_english_summary":"Requires operators of Dassault Falcon 2000 aeroplanes to inspect, monitor and — where specified — replace particular flap jackscrews and related components, and to check the flap asymmetry protection system using Dassault Maintenance Manual procedures (Requirement). \n\nDeadlines are short (for example within 5–25 flights or recurring every 330 flight‑hours/7 months), so aircraft owners/operators pay for and must schedule the required checks and replacements (Compliance)."},"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":4,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive focused on a specific mechanical defect in a specific aircraft type. The scope remains tightly focused on flap jackscrew safety and has not expanded beyond its original safety purpose."},"complexity_factors":["Multiple compliance deadlines (6 separate numbered requirements with different timelines)","Cross-references to external documents (Maintenance Manual procedures 27-502 and 27-504, service bulletin AVIAC 5318-27-01, DGAC AD 1999-038-008(B) R1)","Technical part numbers with revision tracking (P/N 5318-1 with amendment 'a' and 'R' engraving requirements)","Conditional logic based on flight hours accumulated (750, 1000, 2200 flight thresholds)","Alternative part substitution rules (P/N 5318-2 or -3 with reference to MM chapter 5.40 limitations)","Nested notes (3 explanatory notes with technical caveats)"],"plain_english_summary":"This CASA Airworthiness Directive mandates Dassault Falcon 2000 operators to inspect and, where needed, replace flap jackscrews and verify the flap asymmetry protection to prevent uneven flap deployment.  \n\nIt matters because worn or jammed jackscrews can cause asymmetric flaps, risking loss of control during takeoff or landing; operators must address affected parts promptly and perform recurring checks to maintain safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f2000-11-flap-jackscrew","history":"/api/acts/ad-f2000-11-flap-jackscrew/history","analysis":"/api/acts/ad-f2000-11-flap-jackscrew/analysis","conflicts":"/api/acts/ad-f2000-11-flap-jackscrew/conflicts","importantCases":"/api/acts/ad-f2000-11-flap-jackscrew/important-cases","documents":"/api/acts/ad-f2000-11-flap-jackscrew/documents"}}