{"id":"F2008L04486","name":"AD/F28/91 - Engine Controls - Fuel Fire Shut-off Valve Actuator - CANCELLED","slug":"ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76513,"registerId":"commonwealth-F2008L04486-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Fokker F28 Series Aeroplanes","sectionType":"division","heading":"Fokker F28 Series Aeroplanes","content":"### Fokker F28 Series Aeroplanes\n\n| AD/F28/91 | Engine Controls - Fuel FireShut-off Valve Actuator | 13/2008 |\n| --------- | -------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                            |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 18 December 2008.                                                                                             |\n| Background:  | This AD was entered in error as it only applies to F28 70 and 100 series aeroplanes. This AD has been reissued in the F28 100 series. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n7 November 2008","sortOrder":0},{"sectionNumber":"AD/F28/91","sectionType":"part","heading":"AD/F28/91","content":"## AD/F28/91","sortOrder":1},{"sectionNumber":"Engine Controls - Fuel FireShut-off Valv","sectionType":"part","heading":"Engine Controls - Fuel FireShut-off Valve Actuator","content":"## Engine Controls - Fuel Fire  \nShut-off Valve Actuator","sortOrder":2},{"sectionNumber":"13/2008","sectionType":"part","heading":"13/2008","content":"## 13/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2654},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument performs a straightforward cancellation of an erroneously issued directive. It does not expand or alter the scope of regulatory obligations, but rather removes a requirement that was mistakenly applied to the wrong aircraft series, pending reissue to the correct model range."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or technical specifications","No conditional logic, exceptions, or cross-references to other legislative schemes","Administrative error correction rather than substantive rule-making"],"plain_english_summary":"This document cancels an **Airworthiness Directive (AD)**—a mandatory safety instruction issued by the Civil Aviation Safety Authority that aircraft operators must follow.\n\n**What it does:**\n- Formally cancels directive AD/F28/91, which previously required maintenance or inspection of fuel fire shut-off valve actuators on Fokker F28 aeroplanes.\n- The cancellation fixes a registration error: the original directive was mistakenly applied to the entire F28 series when it should only have covered specific models (the F28 70 and 100 series).\n- A corrected version of the directive has been separately issued for the appropriate aircraft models.\n\n**Who it affects:**\n- Operators, pilots, and maintenance engineers responsible for Fokker F28 aircraft who were working to comply with the cancelled directive.\n\n**Practical effect:**\n- Compliance with the cancelled AD/F28/91 is no longer required; affected parties should instead follow the replacement directive applicable to their specific F28 model."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled","history":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled/history","analysis":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled/analysis","conflicts":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled/conflicts","importantCases":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled/important-cases","documents":"/api/acts/ad-f28-91-engine-controls-fuel-fire-shut-off-valve-actuator-cancelled/documents"}}