{"id":"F2008L00882","name":"AD/BEECH 23/25 - Main Landing Gear Supports - CANCELLED","slug":"ad-beech-23-25-main-landing-gear-supports-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":73006,"registerId":"commonwealth-F2008L00882-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Beechcraft 19, 23 and 24 Series Aeroplan","sectionType":"division","heading":"Beechcraft 19, 23 and 24 Series Aeroplanes","content":"### Beechcraft 19, 23 and 24 Series Aeroplanes\n\n| AD/BEECH 23/25 | Main Landing Gear Supports | 4/2008 |\n| -------------- | -------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                               |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 10 April 2008.                                                                                                                                                                                                   |\n| Background:  | This AD, issued in 1974, required inspection for security of the main landing gear forward and aft support castings due possible loose Jo-bolts. As all aircraft would have complied with this AD by now, this AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n28 February 2008","sortOrder":0},{"sectionNumber":"AD/BEECH 23/25","sectionType":"part","heading":"AD/BEECH 23/25","content":"## AD/BEECH 23/25","sortOrder":1},{"sectionNumber":"Main Landing Gear Supports","sectionType":"part","heading":"Main Landing Gear Supports","content":"## Main Landing Gear Supports","sortOrder":2},{"sectionNumber":"4/2008","sectionType":"part","heading":"4/2008","content":"## 4/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1915},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward cancellation of a time-expired safety directive, consistent with the original regulatory intent of removing mandatory requirements once universal compliance is achieved."},"complexity_factors":["Single operative provision cancelling one previous instrument","No definitions section or interpretative provisions","No cross-references to other legislation beyond the cancelled AD","Straightforward historical background with no conditional exceptions"],"plain_english_summary":"**What this does**\nThis document officially cancels a 34-year-old aircraft safety rule affecting specific Beechcraft planes.\n\n**The old rule**\nIn 1974, authorities required owners of Beechcraft Model 19, 23, and 24 series aircraft (including Musketeer and Sundowner variants) to inspect the bolts on their main landing gear supports. The concern was that \"Jo-bolts\" (specialized fasteners attaching the gear supports) could loosen, potentially causing landing gear failure.\n\n**Why it is being cancelled**\nEvery affected aircraft has now completed the required inspection. Because the safety issue has been addressed across the entire fleet, the mandatory inspection rule is no longer necessary.\n\n**Who it affects**\nOwners and operators of the specified Beechcraft models. In practice, no immediate action is required—this simply removes an outdated compliance obligation from maintenance records."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled","history":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled/history","analysis":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled/analysis","conflicts":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled/conflicts","importantCases":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled/important-cases","documents":"/api/acts/ad-beech-23-25-main-landing-gear-supports-cancelled/documents"}}