{"id":"F2007L04221","name":"AD/F50/85 Amdt 1 - Feathering Pump Gasket - CANCELLED","slug":"ad-f50-85-amdt-1-feathering-pump-gasket-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":70422,"registerId":"commonwealth-F2007L04221-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/F50/85 Amdt 1 - Feathering Pump Gasket - 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/F50/85 Amdt 1.\n\n### Fokker F50 (F27 Mk 50) Series Aeroplanes\n\n| AD/F50/85 Amdt 1 | Feathering Pump Gasket | 13/2007 TX |\n| --- | --- | --- |\n\n\n \n\n| Requirement: | CANCELLED. |\n| --- | --- |\n|  | This AD is cancelled on 26 October 2007. |\n| Background: | The actions in this AD have been superseded by AD/F50/88 Amdt 1. |\n\n\n![](image.001.png)\n\nDavid Punshon  Delegate of the Civil Aviation Safety Authority\n\n23 October 2007\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2060},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the previous directive entirely rather than expanding its scope; the substantive requirements have been consolidated into a separate, newer directive."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No conditional logic, exceptions, or schedules","Only one cross-reference (to the superseding directive)"],"plain_english_summary":"**What this does**\nThis document officially cancels (revokes) a previous safety rule called an **Airworthiness Directive** (a legally binding order requiring specific maintenance or inspections on aircraft).\n\nSpecifically, it cancels **AD/F50/85 Amendment 1**, which previously required certain actions regarding feathering pump gaskets on specific aircraft.\n\n**Who it affects**\nOwners and operators of **Fokker F50** (also known as F27 Mk 50) series aeroplanes.\n\n**Why it matters**\nIf you were following the old directive, you can stop — but only because the requirements have been moved to a newer directive (**AD/F50/88 Amendment 1**). This cancellation prevents duplicate or conflicting requirements. The cancellation took effect on 26 October 2007."}},"importantCases":[],"_links":{"self":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled","history":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled/history","analysis":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled/analysis","conflicts":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled/conflicts","importantCases":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled/important-cases","documents":"/api/acts/ad-f50-85-amdt-1-feathering-pump-gasket-cancelled/documents"}}