{"id":"F2009L02225","name":"AD/RYAN/1B - Lower Flying Wire Lug - Replacement - CANCELLED","slug":"ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":162031,"registerId":"commonwealth-F2009L02225-current","compilationNumber":null,"startDate":"2026-04-04","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Ryan ST Series Aeroplanes","sectionType":"division","heading":"Ryan ST Series Aeroplanes","content":"### Ryan ST Series Aeroplanes\n\n| AD/RYAN/1B | Lower Flying Wire Lug - Replacement | 7/2009 |\n| ---------- | ----------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                                                      |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 2 July 2009.                                                                                                                                                                                                                                                                                                            |\n| Background:  | This Australian AD raised in 1966 required a modification by replacement of the lower flying wire attachment lugs (P/N 5-123-15) at fuselage bulkhead No.2 with reinforced lugs. Compliance was required within 100 hours TIS after 29 November 1974.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 May 2009","sortOrder":0},{"sectionNumber":"AD/RYAN/1B","sectionType":"part","heading":"AD/RYAN/1B","content":"## AD/RYAN/1B","sortOrder":1},{"sectionNumber":"Lower Flying Wire Lug - Replacement","sectionType":"part","heading":"Lower Flying Wire Lug - Replacement","content":"## Lower Flying Wire Lug - Replacement","sortOrder":2},{"sectionNumber":"7/2009","sectionType":"part","heading":"7/2009","content":"## 7/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1963},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument serves solely to cancel a previous directive (AD/RYAN/1). Its scope remains limited to revocation of the 1966 modification requirement and does not introduce new regulatory obligations or expand coverage beyond the original Ryan ST Series aircraft."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic or exceptions","Extremely short length (under 200 words)","No cross-references to other legislation except the implied cancellation of AD/RYAN/1"],"plain_english_summary":"This CASA Airworthiness Directive cancels the 1966 AD that required replacing weak lower flying‑wire attachment lugs on Ryan ST Series aeroplanes. Because the original compliance deadline passed decades ago, CASA considers the modification effectively completed and the directive redundant. Owners/operators of Ryan ST aircraft no longer have that historic obligation—this is routine housekeeping."}},"importantCases":[],"_links":{"self":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled","history":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled/history","analysis":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled/analysis","conflicts":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled/conflicts","importantCases":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled/important-cases","documents":"/api/acts/ad-ryan-1b-lower-flying-wire-lug-replacement-cancelled/documents"}}