{"id":"F2009L03258","name":"AD/F28/92 - Landing gear - Brake Quick Disconnect Couplings - CANCELLED","slug":"ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":140669,"registerId":"commonwealth-F2009L03258-current","compilationNumber":null,"startDate":"2026-04-03","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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Fokker F28 Series Aeroplanes","sectionType":"division","heading":"Fokker F28 Series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/F28/92 | Landing gear - BrakeQuick Disconnect Couplings | 11/2009 DM |\n| --------- | ---------------------------------------------- | ---------- |\n\n| Requirement: | CANCELLED.                                                                                             |\n| ------------ | ------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 24 September 2009.                                                             |\n| Background:  | This AD was entered in error. The requirements of this AD have been transferred to the F100 AD series. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n18 August 2009","sortOrder":0},{"sectionNumber":"AD/F28/92","sectionType":"part","heading":"AD/F28/92","content":"## AD/F28/92","sortOrder":1},{"sectionNumber":"Landing gear - BrakeQuick Disconnect Cou","sectionType":"part","heading":"Landing gear - BrakeQuick Disconnect Couplings","content":"## Landing gear - Brake  \nQuick Disconnect Couplings","sortOrder":2},{"sectionNumber":"11/2009 DM","sectionType":"part","heading":"11/2009 DM","content":"## 11/2009 DM","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2456},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"The original AD/F28/92 imposed specific airworthiness requirements on brake quick disconnect couplings for F28 aircraft. This instrument nullifies those requirements entirely because the AD was 'entered in error', reducing the regulatory scope to zero and transferring any applicable requirements to a different aircraft series (F100)."},"complexity_factors":["Single operative provision consisting of one word ('CANCELLED')","No defined terms or interpretation section","No conditional logic, exceptions, or procedural steps","Only one cross-reference (to the F100 AD series)","Extremely brief with minimal regulatory text"],"plain_english_summary":"This document officially cancels a previous aviation safety rule (**Airworthiness Directive AD/F28/92**) that applied to Fokker F28 aircraft.\n\n**What it does:**\n- Cancels a directive that would have regulated brake quick disconnect couplings on landing gear\n- Explains the original directive was entered by mistake\n- Redirects operators to the **F100 Airworthiness Directive series** for the correct requirements\n- Took effect on **24 September 2009**\n\n**Who it affects:**\nOwners and operators of Fokker F28 series aircraft. Since this only removes a previous rule rather than adding new ones, it eliminates obligations rather than creating them.\n\n**Why it matters:**\nIt corrects a regulatory error by removing duplicate or misplaced safety requirements, ensuring operators follow the standards in the correct F100 directive instead of this erroneous F28 directive."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled","history":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled/history","analysis":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled/analysis","conflicts":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled/conflicts","importantCases":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled/important-cases","documents":"/api/acts/ad-f28-92-landing-gear-brake-quick-disconnect-couplings-cancelled/documents"}}