{"id":"F2005L00618","name":"AD/S-62/9 - Pylon Stabilizer Installation - CANCELLED","slug":"ad-s-62-9-pylon-stabilizer-installation-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":112889,"registerId":"commonwealth-F2005L00618-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Sikorsky S-62 Series Helicopters","sectionType":"division","heading":"Sikorsky S-62 Series Helicopters","content":"### Sikorsky S-62 Series Helicopters\n\n| AD/S-62/9 | Pylon Stabilizer Installation | 4/2005 |\n| --------- | ----------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                    |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 14 April 2005.                                                                                                                        |\n| Background:  | This Directive required repeat inspection and modification action. AD is not applicable to later manufactured helicopters, and is not supported by an FAA AD. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n2 March 2005","sortOrder":0},{"sectionNumber":"AD/S-62/9","sectionType":"part","heading":"AD/S-62/9","content":"## AD/S-62/9","sortOrder":1},{"sectionNumber":"Pylon Stabilizer Installation","sectionType":"part","heading":"Pylon Stabilizer Installation","content":"## Pylon Stabilizer Installation","sortOrder":2},{"sectionNumber":"4/2005","sectionType":"part","heading":"4/2005","content":"## 4/2005","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2930},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The directive has transformed from imposing active safety compliance obligations (requiring repetitive inspections and modifications on Sikorsky S-62 helicopters) to a complete cancellation that removes all requirements. The regulatory scope has contracted from operational mandates to administrative termination."},"complexity_factors":["Single operative provision cancelling previous requirements","No defined terms or interpretive sections","No conditional logic, exceptions, or cross-references to other legislation","Extremely brief (approximately 30 words of substantive legal effect)"],"plain_english_summary":"This **Airworthiness Directive (AD)** — a mandatory safety order issued by the Civil Aviation Safety Authority (CASA) — formally cancels a previous maintenance requirement for certain helicopters.\n\n**What changed:**\n- **Previous requirement:** Owners and operators of Sikorsky S-62 series helicopters had to perform repetitive inspections and modifications to the pylon stabilizer installation.\n- **New status:** This directive is **completely cancelled** as of 14 April 2005. No further action is required.\n\n**Why it was cancelled:**\n- The safety issue no longer affects later-manufactured helicopters\n- The United States Federal Aviation Administration (FAA) — which originally supported this safety requirement — no longer mandates it\n\n**Who is affected:**\nOwners and operators of Sikorsky S-62 helicopters who were previously complying with the repeat inspection and modification schedule. They can now stop these specific maintenance activities."}},"importantCases":[],"_links":{"self":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled","history":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled/history","analysis":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled/analysis","conflicts":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled/conflicts","importantCases":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled/important-cases","documents":"/api/acts/ad-s-62-9-pylon-stabilizer-installation-cancelled/documents"}}