{"id":"F2009L04127","name":"AD/BAe 146/79 - Nose Landing Gear Oleo - CANCELLED","slug":"ad-bae-146-79-nose-landing-gear-oleo-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":81744,"registerId":"commonwealth-F2009L04127-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BAe 146/79 - Nose Landing Gear Oleo - CANCELLED","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: AIRCRAFT\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\n \n\nAIRWORTHINESS DIRECTIVE\n\nOn the effective date specified below, and for the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive AD/BAe 146/79.\n\n### British Aerospace BAe 146 Series Aeroplanes\n\n| AD/BAe 146/79 | Nose Landing Gear Oleo | 22/2009 |\n| --- | --- | --- |\n\n\n \n\n| Requirement: | CANCELLED. |\n| --- | --- |\n|  | This AD is cancelled on 9 November 2009. |\n| Background: | The requirements of this Directive are contained in AD/BAe 146/137 Amdt 1. |\n\n\n![](image.001.png)\n\nDavid Villiers  Delegate of the Civil Aviation Safety Authority\n\n5 November 2009\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2064},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":true,"description":"This instrument represents a complete revocation of the original directive. Where AD/BAe 146/79 previously mandated specific maintenance actions for nose landing gear oleos, it now serves only to cancel those requirements and redirect operators to AD/BAe 146/137 Amdt 1."},"complexity_factors":["Single operative provision consisting of the word 'CANCELLED'","No defined terms or technical specifications","No conditional logic or exceptions","Consists entirely of administrative revocation and redirection to another instrument"],"plain_english_summary":"This **Airworthiness Directive (AD)** cancels an old safety rule for British Aerospace BAe 146 series aircraft.\n\n**What it does**\n- Revokes (cancels) directive AD/BAe 146/79, which previously required specific maintenance actions on the nose landing gear oleo (the shock-absorbing strut on the front wheel)\n- Effective from 9 November 2009, aircraft operators no longer need to follow the old directive\n\n**Where the rules have gone**\nThe safety requirements from the old directive aren't disappearing—they've been moved to **AD/BAe 146/137 Amendment 1**. Operators must follow that directive instead.\n\n**Who this affects**\nOwners and operators of British Aerospace BAe 146 series aeroplanes."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled","history":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled/history","analysis":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled/analysis","conflicts":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled/conflicts","importantCases":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled/important-cases","documents":"/api/acts/ad-bae-146-79-nose-landing-gear-oleo-cancelled/documents"}}