{"id":"F2009L04595","name":"AD/CF6/66 - Uncontained Fan Blade Failure - CANCELLED","slug":"ad-cf6-66-uncontained-fan-blade-failure-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":82459,"registerId":"commonwealth-F2009L04595-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"General Electric Turbine Engines - CF6 S","sectionType":"division","heading":"General Electric Turbine Engines - CF6 Series","content":"### General Electric Turbine Engines - CF6 Series\n\n| AD/CF6/66 | Uncontained Fan Blade Failure | 25/2009 |\n| --------- | ----------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                            |\n| ------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 4 January 2010.                                                                                                                                                                                                                                                               |\n| Background:  | A State of Design airworthiness directive issued on or after 1 October 2009 is defined as an airworthiness directive per CASR Part 39.001A. The requirements of this airworthiness directive which referred to FAA AD 2007-11-18 have been superseded by FAA AD 2007-11-18R1 issued 16 November 2009. |\n\n![](image.001.png)\n\nWilliam David  \nDelegate of the Civil Aviation Safety Authority\n\n08 December 2009","sortOrder":0},{"sectionNumber":"AD/CF6/66","sectionType":"part","heading":"AD/CF6/66","content":"## AD/CF6/66","sortOrder":1},{"sectionNumber":"Uncontained Fan Blade Failure","sectionType":"part","heading":"Uncontained Fan Blade Failure","content":"## Uncontained Fan Blade Failure","sortOrder":2},{"sectionNumber":"25/2009","sectionType":"part","heading":"25/2009","content":"## 25/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1624},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs exactly the limited function described: cancelling a previous directive. It does not expand, modify, or extend beyond the original scope of AD/CF6/66; it simply terminates it."},"complexity_factors":["Single operative provision (cancellation) with no substantive regulatory requirements","Minimal defined terms - only references external FAA directive numbers","No conditional logic or exceptions"],"plain_english_summary":"This cancels the Australian airworthiness directive that applied to GE CF6 engines and tells affected airlines and operators (e.g., 747/767/A300/A310 users) they may follow the updated FAA AD (2007-11-18R1 of 16 Nov 2009) instead. \n\nEffective 4 January 2010, it removes the redundant Australian requirement that addressed uncontained fan-blade failure, replacing it with the revised US safety standard."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled","history":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled/history","analysis":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled/analysis","conflicts":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled/conflicts","importantCases":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled/important-cases","documents":"/api/acts/ad-cf6-66-uncontained-fan-blade-failure-cancelled/documents"}}