{"id":"F2009L04130","name":"AD/F50/101 - Engine Controls - Automatic Flight-Idle Stop Control Unit - CANCELLED","slug":"ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":81750,"registerId":"commonwealth-F2009L04130-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Fokker F50 (F27 Mk 50) Series Aeroplanes","sectionType":"division","heading":"Fokker F50 (F27 Mk 50) Series Aeroplanes","content":"### Fokker F50 (F27 Mk 50) Series Aeroplanes\n\n| AD/F50/101 | Engine Controls - AutomaticFlight-Idle Stop Control Unit | 22/2009 |\n| ---------- | -------------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                         |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 6 November 2009.                                                                                                                                                                                                                           |\n| Background:  | A State of Design airworthiness directive issued on or after 1st October 2009 is defined as an airworthiness directive per CASR Part 39.001A. The requirements of this airworthiness directive have been superseded by EASA AD 2009-0049R1 issued 20 October 2009. |\n\n![](image.001.png)\n\nWilliam David  \nDelegate of the Civil Aviation Safety Authority\n\n28 October 2009","sortOrder":0},{"sectionNumber":"AD/F50/101","sectionType":"part","heading":"AD/F50/101","content":"## AD/F50/101","sortOrder":1},{"sectionNumber":"Engine Controls - AutomaticFlight-Idle S","sectionType":"part","heading":"Engine Controls - AutomaticFlight-Idle Stop Control Unit","content":"## Engine Controls - Automatic  \nFlight-Idle Stop Control Unit","sortOrder":2},{"sectionNumber":"22/2009","sectionType":"part","heading":"22/2009","content":"## 22/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1850},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original directive imposed specific airworthiness requirements on Fokker F50 engine control units. This instrument completely removes those Australian requirements, replacing them with compliance obligations under a European Aviation Safety Agency directive instead."},"complexity_factors":["Single operative clause cancelling previous instrument","No defined terms or interpretive provisions","No procedural steps or conditional requirements","Minimal cross-reference to superseding EASA directive only"],"plain_english_summary":"**What this is:** This document cancels a previous Australian aviation safety rule (Airworthiness Directive AD/F50/101) that applied to Fokker F50 aircraft.\n\n**What it does:** As of 6 November 2009, aircraft operators no longer need to comply with the Australian requirements regarding the engine's automatic flight-idle stop control unit. Instead, they must follow a European safety directive (EASA AD 2009-0049R1) issued in October 2009.\n\n**Who it affects:** Owners and operators of Fokker F50 (also known as F27 Mk 50) series aeroplanes.\n\n**Why it matters:** This change streamlines safety oversight by adopting a foreign directive rather than maintaining a separate Australian rule. It reduces regulatory duplication while ensuring the same safety standards are maintained through the European Aviation Safety Agency's requirements."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled","history":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled/history","analysis":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled/analysis","conflicts":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled/conflicts","importantCases":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled/important-cases","documents":"/api/acts/ad-f50-101-engine-controls-automatic-flight-idle-stop-control-unit-cancelled/documents"}}