{"id":"F2006B11428","name":"AD/OXY/17 - Smoke Hood Inspection","slug":"ad-oxy-17-smoke-hood-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57353,"registerId":"commonwealth-F2006B11428-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/OXY/17 - Smoke Hood Inspection","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nOxygen Systems\n\nAD/OXY/17 Smoke Hood Inspection 2/98\n\nApplicability: AIR LIQUIDE Smoke hood type 15-40 F installed on any type of aircraft with the following lot numbers and are not further identified with a “R1” on the label:\n\n| 8141 | 8283 | 8359 | 8389 | 8413 | 8473 |\n| ---- | ---- | ---- | ---- | ---- | ---- |\n| 8474 | 8475 | 8477 | 8524 | 8569 | 8570 |\n| 8656 | 8657 | 8682 | 8744 | 8801 | 8840 |\n| 8841 | 8842 | 9003 | 9007 | 9254 |      |\n\nRequirement: 1. Inspect and remove from service all type 15-40 F smoke hoods installed on aircraft and identified by the lot numbers above.\n\n2. Smoke hoods identified above are not to be fitted to any aircraft.\n\nNote: DGAC AD 97-088(AB)R1 refers.\n\nCompliance: 1. Unless previously accomplished, no later than 16 July 1998.\n\n2. As of the effective date of this airworthiness directive.\n\nThis airworthiness directive becomes effective on 29 January 1998.\n\nBackground: The DGAC has been informed that some visors on the smoke hoods, identified by the lot numbers detailed become opaque (white) within a few minutes following the opening of the vacuum package. In order to eliminate the potential risk presented by these hoods, this airworthiness directive requires all smoke hoods identified to be removed from service.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete safety directive targeting a specific manufacturing defect in a specific product. It has not expanded beyond its original purpose of removing defective smoke hoods from service."},"complexity_factors":["Very short document (under 300 words)","Only 4 defined elements: specific model number (15-40 F), manufacturer (Air Liquide), 24 specific lot numbers, and the 'R1' marking exclusion","No cross-references to other legislation (only a reference to the French DGAC notice for background)","Simple binary compliance: inspect/remove if matched, don't install if matched","Single deadline with one exception clause ('unless previously accomplished')","No nested conditions or exceptions"],"plain_english_summary":"This CASA Airworthiness Directive orders operators to inspect, remove, and stop installing Air Liquide smoke hoods model 15‑40 F from specified lot numbers (those made without an \"R1\" label). It affects any Australian aircraft using those batches because the hoods’ visors were found to turn opaque minutes after opening, creating a life‑threatening “white‑out” in emergencies. The DGAC identified the defect; removal was required by 16 July 1998."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive confines action to the named smoke hood model and specified lot numbers and requires their removal and prohibition because visors can turn opaque (Background). There is no text extending scope beyond those affected items, so the practical scope aligns with the stated safety purpose."},"complexity_factors":["Narrow applicability: targets a single model and a finite list of lot numbers (Applicability).","Simple corrective action: mandatory removal from service and prohibition on refitting (Requirement 1 & 2).","Short compliance schedule: removal deadline specified (Compliance: no later than 16 July 1998; effective 29 January 1998).","Verification burden on operators: requires inspection of installed equipment and label checking for “R1” (Applicability & Requirement).","No procedural discretion: directive states actions in mandatory terms without alternative corrective options (Requirement).","Implementation cost implication: operators must replace removed hoods but replacement sourcing is not addressed in the text (Requirement & Background).","Cross-reference to foreign AD: refers to DGAC AD 97-088(AB)R1 which may require consulting an external document (Note).","Administrative gap: the directive does not set out recordkeeping, reporting format, or disposal method for removed hoods (Requirement & Compliance)."],"plain_english_summary":"This airworthiness directive orders operators to inspect for Air Liquide smoke hoods (type 15‑40 F) with the listed lot numbers and remove them from service if found, and bans those hoods from being fitted to any aircraft. It affects aircraft operators and maintenance organisations that hold those hoods. The directive says the visors can become opaque minutes after the package is opened, creating a safety risk; removal was required by 16 July 1998 (effective 29 January 1998)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-oxy-17-smoke-hood-inspection","history":"/api/acts/ad-oxy-17-smoke-hood-inspection/history","analysis":"/api/acts/ad-oxy-17-smoke-hood-inspection/analysis","conflicts":"/api/acts/ad-oxy-17-smoke-hood-inspection/conflicts","importantCases":"/api/acts/ad-oxy-17-smoke-hood-inspection/important-cases","documents":"/api/acts/ad-oxy-17-smoke-hood-inspection/documents"}}