{"id":"F2009L02833","name":"AD/AUS/8 - Lift Strut - CANCELLED","slug":"ad-aus-8-lift-strut-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80114,"registerId":"commonwealth-F2009L02833-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Auster/Beagle A.61 Series Aeroplanes","sectionType":"division","heading":"Auster/Beagle A.61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/8 | Lift Strut | 8/2009 |\n| -------- | ---------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                     |\n| ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 30 July 2009.                                                                                                                                                                                                                                                                          |\n| Background:  | This AD, raised in 1950, required an inspection of all lift struts not sealed at manufacture for signs of internal corrosion and treat accordingly. Compliance was required forthwith.As all affected aircraft would have been inspected, and, if necessary, 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/8","sectionType":"part","heading":"AD/AUS/8","content":"## AD/AUS/8","sortOrder":1},{"sectionNumber":"Lift Strut","sectionType":"part","heading":"Lift Strut","content":"## Lift Strut","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":1958},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the previous Airworthiness Directive without expanding or modifying its original scope. Rather than extending coverage to new aircraft or adding new requirements, it simply recognises that the original 1950 safety mandate has been fully satisfied across the fleet and is now obsolete."},"complexity_factors":["Single operative provision (cancellation of previous directive)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references","Self-contained background explaining rationale"],"plain_english_summary":"This document officially cancels an old aircraft safety rule (**Airworthiness Directive**) that required owners of Auster/Beagle A.61 series aeroplanes to inspect the **lift struts** (the structural metal supports that help hold the wings up) for internal corrosion.\n\n**Why it existed:** The original rule was issued in 1950 for aircraft whose struts weren't sealed during manufacturing, as moisture could get inside and cause dangerous corrosion.\n\n**Why it's cancelled:** Because the rule required immediate compliance back in 1950, all affected aircraft would have been inspected and fixed decades ago. The safety issue has been resolved on all remaining aircraft, so the rule is no longer needed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aus-8-lift-strut-cancelled","history":"/api/acts/ad-aus-8-lift-strut-cancelled/history","analysis":"/api/acts/ad-aus-8-lift-strut-cancelled/analysis","conflicts":"/api/acts/ad-aus-8-lift-strut-cancelled/conflicts","importantCases":"/api/acts/ad-aus-8-lift-strut-cancelled/important-cases","documents":"/api/acts/ad-aus-8-lift-strut-cancelled/documents"}}