{"id":"F2009L02857","name":"AD/AS 355/15 Amdt 1 - Sliding Door Ball Joint - Inspection and Modification - CANCELLED","slug":"ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80189,"registerId":"commonwealth-F2009L02857-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Eurocopter AS 355 (Twin Ecureuil) Series","sectionType":"division","heading":"Eurocopter AS 355 (Twin Ecureuil) Series Helicopters","content":"### Eurocopter AS 355 (Twin Ecureuil) Series Helicopters\n\n| AD/AS 355/15 Amdt 1 | Sliding Door Ball Joint - Inspectionand Modification | 8/2009 |\n| ------------------- | ---------------------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                             |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 30 July 2009.                                                                                                                                                                                  |\n| Background:  | This unique Australian AD specified inspection in accordance with Aerospatiale Telex Service 05.11 and SB No. 52-01 at intervals not exceeding 300 hours time in service until modified. The 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/AS 355/15 Amdt 1","sectionType":"part","heading":"AD/AS 355/15 Amdt 1","content":"## AD/AS 355/15 Amdt 1","sortOrder":1},{"sectionNumber":"Sliding Door Ball Joint - Inspectionand ","sectionType":"part","heading":"Sliding Door Ball Joint - Inspectionand Modification","content":"## Sliding Door Ball Joint - Inspection  \nand Modification","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":2117},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This amendment completely cancels the Airworthiness Directive, eliminating all previous inspection and modification requirements for sliding door ball joints. The scope has shifted from imposing recurring mandatory safety obligations on helicopter operators to imposing no obligations whatsoever."},"complexity_factors":["Single operative provision cancelling previous requirements","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislative instruments","Extremely short (effectively one substantive paragraph)"],"plain_english_summary":"This cancels the Airworthiness Directive that required 300‑flight‑hour inspections of sliding‑door ball joints on Eurocopter AS 355 (Twin Écureuil) helicopters. As of 30 July 2009 CASA removed that inspection requirement (previously tied to specific service instructions and mandatory until a modification), finding the check no longer necessary. Owners/operators no longer must track flight hours or comply with that inspection, reducing maintenance and compliance burden."}},"importantCases":[],"_links":{"self":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled","history":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled/history","analysis":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled/analysis","conflicts":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled/conflicts","importantCases":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled/important-cases","documents":"/api/acts/ad-as-355-15-amdt-1-sliding-door-ball-joint-inspection-and-modification-cancelled/documents"}}