{"id":"F2007L04232","name":"AD/B747/310 - Water and Drain Line Heaters - CANCELLED","slug":"ad-b747-310-water-and-drain-line-heaters-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":70443,"registerId":"commonwealth-F2007L04232-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/310 - Water and Drain Line Heaters - 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/B747/310.\n\n### Boeing 747 Series Aeroplanes\n\n| AD/B747/310 | Water and Drain Line Heaters | 12/2007 |\n| --- | --- | --- |\n\n\n \n\n| Requirement: | CANCELLED. |\n| --- | --- |\n|  | This AD is cancelled on 22 November 2007. |\n| Background: | The requirements of this Directive have been superseded by AD/B747/364. |\n\n\n![](image.001.png)\n\nDavid Punshon  Delegate of the Civil Aviation Safety Authority\n\n2 October 2007\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1298},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly its intended administrative function: formally revoking a superseded airworthiness directive. No expansion beyond the original scope."},"complexity_factors":["Single operative provision (cancellation)","No defined terms section","One cross-reference to superseding instrument","Minimal text in tabular format"],"plain_english_summary":"**What this does**\n\nThis document officially cancels a previous aviation safety rule (Airworthiness Directive AD/B747/310) that applied to **water and drain line heaters** on **Boeing 747 aircraft**.\n\n**Who it affects**\n\nOwners and operators of Boeing 747 series aeroplanes.\n\n**Why it matters**\n\nThe old safety requirements have been replaced by a newer directive (**AD/B747/364**). This cancellation means you no longer need to follow the old rule; you must instead comply with the new replacement directive. This is a housekeeping measure to prevent confusion between overlapping safety instructions."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled","history":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled/history","analysis":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled/analysis","conflicts":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled/conflicts","importantCases":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled/important-cases","documents":"/api/acts/ad-b747-310-water-and-drain-line-heaters-cancelled/documents"}}