{"id":"F2009L01324","name":"AD/M20/26 - Landing Gear Actuator - Replacement - CANCELLED","slug":"ad-m20-26-landing-gear-actuator-replacement-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":122321,"registerId":"commonwealth-F2009L01324-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Mooney M20 Series Aeroplanes","sectionType":"division","heading":"Mooney M20 Series Aeroplanes","content":"### Mooney M20 Series Aeroplanes\n\n| AD/M20/26 | Landing Gear Actuator - Replacement | 5/2009 |\n| --------- | ----------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                        |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                               |\n| Background:  | This AD was raised in 1977 against Mooney Service Bulletin (SB) No. M20-194, and required replacement of main landing gear actuators. Compliance was required within 200 hours TIS after 31 March 1977.As all affected aircraft would have been modified long ago, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n17 March 2009","sortOrder":0},{"sectionNumber":"AD/M20/26","sectionType":"part","heading":"AD/M20/26","content":"## AD/M20/26","sortOrder":1},{"sectionNumber":"Landing Gear Actuator - Replacement","sectionType":"part","heading":"Landing Gear Actuator - Replacement","content":"## Landing Gear Actuator - Replacement","sortOrder":2},{"sectionNumber":"5/2009","sectionType":"part","heading":"5/2009","content":"## 5/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2090},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a termination instrument that eliminates regulatory requirements rather than expanding scope. It reduces the regulatory burden to zero for this specific directive by formally revoking it."},"complexity_factors":["Single operative provision (one sentence cancelling previous directive)","No defined terms or interpretation section","No cross-references to other legislation","No conditional logic, exceptions, or procedural steps","Extremely brief (approximately 80 words of substantive content)"],"plain_english_summary":"This document **cancels an outdated aviation safety rule** that is no longer needed.\n\n**What it does**\nIt formally revokes Airworthiness Directive AD/M20/26, originally issued in 1977. That old directive required owners of Mooney M20 series aircraft to replace their main landing gear actuators within 200 flight hours after 31 March 1977.\n\n**Who it affects**\nOwners and operators of Mooney M20 series aeroplanes (single-engine, four-seat aircraft).\n\n**Why it matters**\nBecause all affected aircraft would have completed this safety modification decades ago, the rule serves no further purpose. As of 7 May 2009, the legal obligation to comply with this specific directive is removed. Note that the physical landing gear modifications remain on the aircraft; this simply removes the paperwork requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled","history":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled/history","analysis":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled/analysis","conflicts":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled/conflicts","importantCases":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled/important-cases","documents":"/api/acts/ad-m20-26-landing-gear-actuator-replacement-cancelled/documents"}}