{"id":"F2009L01481","name":"AD/FU24/37 - Elevator Horn Assembly - Inspection - CANCELLED","slug":"ad-fu24-37-elevator-horn-assembly-inspection-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78063,"registerId":"commonwealth-F2009L01481-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airparts (NZ) Ltd. FU 24 Series Aeroplan","sectionType":"division","heading":"Airparts (NZ) Ltd. FU 24 Series Aeroplanes","content":"### Airparts (NZ) Ltd. FU 24 Series Aeroplanes\n\n| AD/FU24/37 | Elevator Horn Assembly - Inspection | 5/2009 |\n| ---------- | ----------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                                         |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                                                                |\n| Background:  | This AD, issued in 1971, required inspection of the elevator horn assembly in accordance with Air Part SL No. 1 to ascertain whether an inner tube had been installed. The AD compliance was within 10 hours time in service after15 January 1971. As all aircraft would have been inspected by now, the AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n26 March 2009","sortOrder":0},{"sectionNumber":"AD/FU24/37","sectionType":"part","heading":"AD/FU24/37","content":"## AD/FU24/37","sortOrder":1},{"sectionNumber":"Elevator Horn Assembly - Inspection","sectionType":"part","heading":"Elevator Horn Assembly - Inspection","content":"## Elevator Horn Assembly - Inspection","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":2131},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the legal effect of the 1971 directive rather than expanding its original scope. The original purpose was to mandate a one-time safety inspection; this cancellation simply recognises that mandate has become obsolete after universal compliance."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or nested provisions","Minimal cross-referencing (only to the superseded 1971 directive)","Extremely short length with plain language background explanation"],"plain_english_summary":"This **cancels an obsolete aviation safety rule** that required specific inspections on Airparts (NZ) Ltd FU 24 series aircraft (light agricultural aeroplanes).\n\n**What it does:**\n- Cancels Airworthiness Directive (AD) FU24/37, originally issued in 1971\n- The old rule required owners to inspect the 'elevator horn assembly' (a component that helps control the plane's pitch) within 10 hours of flying time after January 1971 to check for a specific part (an 'inner tube')\n\n**Why it matters:**\n- The inspection deadline passed nearly 40 years ago, so every affected aircraft has long since complied\n- This clean-up removes redundant rules from the aviation safety books, reducing unnecessary paperwork for aircraft operators and maintenance engineers"}},"importantCases":[],"_links":{"self":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled","history":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled/history","analysis":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled/analysis","conflicts":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled/conflicts","importantCases":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled/important-cases","documents":"/api/acts/ad-fu24-37-elevator-horn-assembly-inspection-cancelled/documents"}}