{"id":"F2007L04517","name":"AD/BEECH 23/2 - Rudder Leading Edge - CANCELLED","slug":"ad-beech-23-2-rudder-leading-edge-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":70982,"registerId":"commonwealth-F2007L04517-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Beechcraft 19, 23 and 24 Series Aeroplan","sectionType":"division","heading":"Beechcraft 19,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 23/2 | Rudder Leading Edge | 13/2007 |\n| ------------- | ------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                       |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 20 December 2007.                                                                                                                                                        |\n| Background:  | This AD was issued in 1964 after a report of a rudder jamming in flight following sideslip. This required a one off modification within 25 hours flight time. The AD is now considered obsolete. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n8 November 2007","sortOrder":0},{"sectionNumber":"AD/BEECH 23/2","sectionType":"part","heading":"AD/BEECH 23/2","content":"## AD/BEECH 23/2","sortOrder":1},{"sectionNumber":"Rudder Leading Edge","sectionType":"part","heading":"Rudder Leading Edge","content":"## Rudder Leading Edge","sortOrder":2},{"sectionNumber":"13/2007","sectionType":"part","heading":"13/2007","content":"## 13/2007","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1827},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly as described—cancelling an obsolete airworthiness directive—without expanding regulatory scope beyond this specific administrative housekeeping action."},"complexity_factors":["Extremely short administrative instrument containing a single operative provision (cancellation)","No defined terms, interpretation section, or legislative apparatus","No conditional logic, exceptions, or procedural requirements","Single historical cross-reference to the original 1964 directive"],"plain_english_summary":"The Civil Aviation Safety Authority cancels a 1964 airworthiness directive that required a one‑time rudder leading‑edge modification on Beechcraft Models 19, 23 and 24. Effective 20 December 2007, the instrument removes a long‑standing compliance obligation affecting owners/operators of those planes — a rule now considered obsolete because affected aircraft have likely been modified or retired."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled","history":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled/history","analysis":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled/analysis","conflicts":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled/conflicts","importantCases":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled/important-cases","documents":"/api/acts/ad-beech-23-2-rudder-leading-edge-cancelled/documents"}}