{"id":"F2006B11420","name":"AD/OXY/1 - Mask Rebreather Bag Security - Inspection and Modification","slug":"ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57337,"registerId":"commonwealth-F2006B11420-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/OXY/1 - Mask Rebreather Bag Security - Inspection and Modification","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Oxygen Systems\n\n \n\nAD/OXY/1 Mask Rebreather Bag Security - Inspection NK\n\nand Modification Applicability: Scott constant flow mask assy (semi-disposable) P/N 28302. Document:               Scott Mod Instruction No. 1-298 (Attachment to SL No. 485). Compliance:               Within 100 hours time in service after 30 July 1971.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1516},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive remains narrowly targeted at the specific technical defect (rebreather bag security) in the identified oxygen mask model. It has not expanded beyond its original limited scope of ensuring physical integrity of a single aviation component."},"complexity_factors":["Single identified part number (Scott P/N 28302) with no sub-variants","One discrete compliance action referencing external manufacturer documentation","Simple temporal deadline (100 hours time-in-service post-30 July 1971)","No conditional exceptions, nested definitions, or cross-references to other legislation"],"plain_english_summary":"This mandatory Airworthiness Directive requires operators using Scott constant-flow mask assembly P/N 28302 to inspect and modify the rebreather bag per Scott Mod Instruction No. 1-298 (Service Letter No. 485).  \n\nIt affects aircraft operators/maintainers (Australia) and must be completed within 100 flight hours after 30 July 1971 to prevent rebreather bag failure that could stop oxygen delivery in an emergency."}},"importantCases":[],"_links":{"self":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification","history":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification/history","analysis":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification/analysis","conflicts":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification/important-cases","documents":"/api/acts/ad-oxy-1-mask-rebreather-bag-security-inspection-and-modification/documents"}}