{"id":"F2009L02835","name":"AD/AUS/4 - Aileron Control Push Rod - CANCELLED","slug":"ad-aus-4-aileron-control-push-rod-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80119,"registerId":"commonwealth-F2009L02835-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Auster/Beagle A.61 Series Aeroplanes","sectionType":"division","heading":"Auster/Beagle A.61 Series Aeroplanes","content":"### Auster/Beagle A.61 Series Aeroplanes\n\n| AD/AUS/4 | Aileron Control Push Rod | 8/2009 |\n| -------- | ------------------------ | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                            |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 30 July 2009.                                                                                                                                                                                                                                                                 |\n| Background:  | This AD, raised in 1956 against Auster modifications 2893 and 2895, required a modification by replacing aileron control push rod ball and socket assembly end bearings. Compliance was required forthwith.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\n18 June 2009","sortOrder":0},{"sectionNumber":"AD/AUS/4","sectionType":"part","heading":"AD/AUS/4","content":"## AD/AUS/4","sortOrder":1},{"sectionNumber":"Aileron Control Push Rod","sectionType":"part","heading":"Aileron Control Push Rod","content":"## Aileron Control Push Rod","sortOrder":2},{"sectionNumber":"8/2009","sectionType":"part","heading":"8/2009","content":"## 8/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1999},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument achieves its sole intended purpose: formally terminating an obsolete 1956 Airworthiness Directive. The scope is limited strictly to cancellation without expanding into new regulatory areas or altering the original intent."},"complexity_factors":["Single-purpose cancellation instrument with no ongoing compliance obligations","No defined terms or interpretive provisions","Contains only a brief historical background and the cancellation statement"],"plain_english_summary":"**What this does:** This document formally cancels an old aircraft safety rule (Airworthiness Directive AD/AUS/4) originally issued in 1956 that required specific repairs to aileron control push rods on Auster/Beagle A.61 series aeroplanes.\n\n**Who it affects:** Owners and operators of these specific vintage aircraft—though practically, no current operators are affected.\n\n**Why it matters:** The original rule required aircraft owners to replace worn ball and socket bearings in the aileron control system. Because all affected aircraft would have completed this modification decades ago, the rule became redundant. This cancellation removes the obsolete legal requirement from the books as of 30 July 2009."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled","history":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled/history","analysis":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled/analysis","conflicts":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled/conflicts","importantCases":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled/important-cases","documents":"/api/acts/ad-aus-4-aileron-control-push-rod-cancelled/documents"}}