{"id":"F2005L01376","name":"AD/F406/13 - Landing Gear","slug":"ad-f406-13-landing-gear","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":35208,"registerId":"commonwealth-F2005L01376-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Reims Aviation F406 Series Aeroplanes","sectionType":"division","heading":"Reims Aviation F406 Series Aeroplanes","content":"### Reims Aviation F406 Series Aeroplanes\n\n| AD/F406/13 | Landing gear | 7/2005 |\n| ---------- | ------------ | ------ |\n\n| Applicability: | Reims Aviation Industries F406 aircraft.                                                                                                                                                                                                                                                                                                                                                                                                     |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Incorporate Reims Aviation Industries Service Bulletin (SB) Number F406-56 dated 12 April 2005 or later DGAC approved revisions.Note: French DGAC Airworthiness Directive (AD) F-2005-065 as approved by EASA reference number 2005-3627 dated 20 April 2005 refers.                                                                                                                                                                         |\n| Compliance:    | Unless previously accomplished, within the next 100 flight hours or 45 days, from the effective date of this AD, whichever occurs first.                                                                                                                                                                                                                                                                                                     |\n|                | This Airworthiness Directive becomes effective on 7 July 2005.                                                                                                                                                                                                                                                                                                                                                                               |\n| Background:    | Investigation following a nose landing gear collapse during takeoff roll revealed that the locking device of the Nose Landing Gear (NLG) actuator rod on several F406 aircraft did not conform to the installation approved by the manufacturer.A collapsed landing gear may cause extensive damage to the aircraft and the occupants.This AD requires inspection and / or replacement of the NLG and the Main Landing Gear locking devices. |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n20 May 2005","sortOrder":0},{"sectionNumber":"AD/F406/13","sectionType":"part","heading":"AD/F406/13","content":"## AD/F406/13","sortOrder":1},{"sectionNumber":"Landing gear","sectionType":"part","heading":"Landing gear","content":"## Landing gear","sortOrder":2},{"sectionNumber":"7/2005","sectionType":"part","heading":"7/2005","content":"## 7/2005","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, narrow Airworthiness Directive targeting a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original safety purpose."},"complexity_factors":["Single, specific aircraft type (Reims F406 series)","One clear compliance action (follow Service Bulletin F406-56)","Simple deadline structure (100 flight hours OR 45 days, whichever first)","No defined terms section","No cross-references to other legislation beyond the referenced French DGAC AD and EASA approval","Straightforward causal chain: defect found → safety risk identified → mandatory fix required","Total length: approximately 200 words of substantive content"],"plain_english_summary":"Operators of Reims Aviation F406 aircraft in Australia must inspect and, if necessary, replace nose and main landing‑gear locking devices after findings that some were improperly installed, causing at least one nose‑gear collapse. \n\nCompliance requires following Service Bulletin F406‑56 (12 Apr 2005 or later approved) within 100 flight hours or 45 days from 7 July 2005; aircraft not inspected/repaired by the deadline may not be flown."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope aligns with the directive's stated intent: address non-conforming nose landing gear locking devices by mandating the Service Bulletin for inspection and replacement of NLG and MLG locking devices on F406 aircraft. The AD limits action to the identified fleet and corrective measures (SB incorporation) within a short compliance window and does not broaden obligations beyond that remedy."},"complexity_factors":["Narrow applicability: applies only to Reims Aviation Industries F406 aircraft (simple population).","Single corrective action route: incorporation of a specific Service Bulletin (F406-56) or later DGAC‑approved revision.","Clear, short compliance window: 100 flight hours or 45 days from the AD effective date.","Technical work required: inspection and possible replacement of nose and main landing‑gear locking devices (requires parts/maintenance capability).","Dependence on external documents and approvals: refers to the manufacturer SB and DGAC/EASA AD for details.","Operational impact: potential aircraft downtime and direct cost to operators for inspections/repairs."],"plain_english_summary":"This directive requires operators of Reims Aviation F406 aeroplanes to incorporate Service Bulletin F406-56 (or a later DGAC‑approved revision) to inspect and, if necessary, replace nose and main landing‑gear locking devices. Compliance is mandatory within 100 flight hours or 45 days from the AD’s effective date.\n\nThe measure responds to a nose‑gear collapse traced to non‑conforming locking devices. Operators pay for and schedule the inspection/repairs; the directive compels corrective action to reduce the risk of gear collapse and resultant damage."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-f406-13-landing-gear","history":"/api/acts/ad-f406-13-landing-gear/history","analysis":"/api/acts/ad-f406-13-landing-gear/analysis","conflicts":"/api/acts/ad-f406-13-landing-gear/conflicts","importantCases":"/api/acts/ad-f406-13-landing-gear/important-cases","documents":"/api/acts/ad-f406-13-landing-gear/documents"}}