{"id":"F2008L02937","name":"AD/CESSNA 400/3 - Nose Landing Gear Doors - Modification - CANCELLED","slug":"ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74880,"registerId":"commonwealth-F2008L02937-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 400 Series Aeroplanes","sectionType":"division","heading":"Cessna 400 Series Aeroplanes","content":"### Cessna 400 Series Aeroplanes\n\n| AD/CESSNA 400/3 | Nose Landing Gear Doors - Modification | 9/2008 |\n| --------------- | -------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                   |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 28 August 2008.                                                                                                                                                                                                                                                                      |\n| Background:  | This unique Australian AD, issued in 1967, required modification of the nose landing gear door installation in accordance with Cessna Service Letter 67-33. The compliance time of this AD was within 100 hours time in service. As all aircraft would have now been modified, the AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n18 July 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 400/3","sectionType":"part","heading":"AD/CESSNA 400/3","content":"## AD/CESSNA 400/3","sortOrder":1},{"sectionNumber":"Nose Landing Gear Doors - Modification","sectionType":"part","heading":"Nose Landing Gear Doors - Modification","content":"## Nose Landing Gear Doors - Modification","sortOrder":2},{"sectionNumber":"9/2008","sectionType":"part","heading":"9/2008","content":"## 9/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1950},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly its intended function: formally cancelling an obsolete airworthiness directive. The scope remains limited to the specific Cessna 400 series aircraft covered by the original 1967 AD, and has not expanded beyond this purpose."},"complexity_factors":["Single operative provision (cancellation) with no conditions","No defined terms or interpretation section","No cross-references to other legislation (other than the historical reference to the original 1967 AD)","Minimal length with straightforward factual background","No exceptions, exemptions, or procedural requirements"],"plain_english_summary":"This **Airworthiness Directive (AD)** formally cancels an outdated aviation safety rule that required modifications to the nose landing gear doors on **Cessna 400 series aircraft**.\n\n**What it does:**\n- Cancels the previous directive (AD/CESSNA 400/3) effective 28 August 2008\n- The original 1967 rule required aircraft owners to modify the nose landing gear door installation within 100 hours of flying time\n\n**Who it affects:**\n- Owners and operators of Cessna 400 series aeroplanes (though the cancellation removes rather than imposes a requirement)\n\n**Why it matters:**\nAll affected aircraft completed the required modifications decades ago, making the old rule unnecessary. This cancellation removes obsolete requirements from the aviation safety regulations, simplifying compliance for aircraft operators."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled","history":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled/history","analysis":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled/analysis","conflicts":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled/important-cases","documents":"/api/acts/ad-cessna-400-3-nose-landing-gear-doors-modification-cancelled/documents"}}