{"id":"F2009L01379","name":"AD/HU 269/105 - Tailboom Support Struts - CANCELLED","slug":"ad-hu-269-105-tailboom-support-struts-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":77821,"registerId":"commonwealth-F2009L01379-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Schweizer (Hughes) 269 Series Helicopter","sectionType":"division","heading":"Schweizer (Hughes) 269 Series Helicopters","content":"### Schweizer (Hughes) 269 Series Helicopters\n\n| AD/HU 269/105 | Tailboom Support Struts | 5/2009 |\n| ------------- | ----------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                       |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 7 May 2009.                                                                                                                                                                                                                                                              |\n| Background:  | This AD was raised in 1995 to require a one-time inspection of the tailboomsupport strut for cracking. Compliance was required before 200 hours TIS after17 August 1995.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\n17 March 2009","sortOrder":0},{"sectionNumber":"AD/HU 269/105","sectionType":"part","heading":"AD/HU 269/105","content":"## AD/HU 269/105","sortOrder":1},{"sectionNumber":"Tailboom Support Struts","sectionType":"part","heading":"Tailboom Support Struts","content":"## Tailboom Support Struts","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":1749},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the airworthiness directive entirely rather than expanding its scope. The legislation simply ceases to have effect as its original safety purpose (ensuring mandatory inspections were completed) has been fulfilled by all affected parties."},"complexity_factors":["Single operative provision (cancellation statement)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references","Minimal text with historical context only"],"plain_english_summary":"This document **cancels an old helicopter safety rule** that required inspections for cracked tailboom support struts on **Schweizer (Hughes) 269 Series Helicopters**.\n\n**What the original rule required:**\n- A one-time inspection of tailboom support struts for cracking\n- Had to be completed before 200 hours of flight time (counting from August 1995)\n\n**What this document does:**\n- Cancels the inspection requirement effective **7 May 2009**\n- Removes the obligation for owners and operators to comply with this specific rule\n\n**Why cancel it now?**\nThe Civil Aviation Safety Authority (CASA) confirms that all affected helicopters were inspected and repaired decades ago. Since everyone has already complied, the rule is redundant and can be removed from the books.\n\n**In plain terms:** This is regulatory housekeeping—cleaning up old safety requirements that have already been followed."}},"importantCases":[],"_links":{"self":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled","history":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled/history","analysis":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled/analysis","conflicts":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled/conflicts","importantCases":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled/important-cases","documents":"/api/acts/ad-hu-269-105-tailboom-support-struts-cancelled/documents"}}