{"id":"F2006B03360","name":"AD/B767/185 - Flightcrew Oxygen Masks","slug":"ad-b767-185-flightcrew-oxygen-masks","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42810,"registerId":"commonwealth-F2006B03360-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nBoeing 767 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/B767/185 Flightcrew Oxygen Masks 9/20","sectionType":"part","heading":"AD/B767/185 Flightcrew Oxygen Masks 9/2003","content":"# AD/B767/185 Flightcrew Oxygen Masks 9/2003\n\nApplicability: B767-200, \\-300, \\-300F and \\-400ER series aeroplanes. Requirement: For B767-200, -300 and -300F series aeroplanes:\n\nRevise the Emergency Procedures section of the Aircraft Flight Manual (AFM) by\n\nreplacing the following text:\n\n''Rapid Depressurization\n\nRecall\n\nOxygen Masks and Regulators-ON'' With revised text as follows:\n\n\"Cabin Altitude Warning or Rapid Depressurization\n\nCondition: The CABIN ALT or CABIN ALTITUDE light illuminated indicates cabin altitude is excessive:\n\nRECALL\n\nOxygen Masks & Regulators ON, 100%\"\n\nThe rest of the steps under this heading in the AFM are unchanged.","sortOrder":1},{"sectionNumber":"For B767-400ER series aeroplanes:","sectionType":"part","heading":"For B767-400ER series aeroplanes:","content":"## For B767-400ER series aeroplanes:\n\nRevise the Non-Normal Procedures section of the AFM by replacing the following text:\n\n''Rapid Depressurization\n\nTurn on oxygen masks, and establish crew communications''.\n\nWith revised text as follows:\n\n\"Cabin Altitude Warning or Rapid Depressurization\n\nCondition: The CABIN ALT or CABIN ALTITUDE light illuminated indicates cabin altitude is excessive:\n\nPut on oxygen masks and establish crew communications.\"\n\nThe rest of the steps under this heading in the AFM are unchanged.","sortOrder":2},{"sectionNumber":"Boeing 767 Series Aeroplanes","sectionType":"part","heading":"Boeing 767 Series Aeroplanes","content":"## Boeing 767 Series Aeroplanes\n\nAD/B767/185 (continued)\n\nThe foregoing may be accomplished by inserting a copy of this Directive into the appropriate section of the AFM.\n\nNote: FAA AD 2003-14-08 Amdt 39-13227 refers.\n\nCompliance: Within 90 days after the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 4 September 2003.\n\nBackground: This Directive requires the revision of the AFM to advise the flightcrew to don oxygen masks as a first and immediate step when a cabin altitude warning occurs. This action is necessary to prevent incapacitation of the flightcrew due to lack of oxygen, which could result in loss of control of the aeroplane.\n\n![Signature of James Coyne, Delegate of the Civil Aviation Safety Authority.](image.002.png)  \n\nJim Coyne\n\nDelegate of the Civil Aviation Safety Authority 25 July 2003\n\n![](image.001.png)  \n\nThe above AD is notified in the Commonwealth of Australia Gazette on 13 August 2003.","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive stays within the original safety purpose: to reduce crew hypoxia risk by making donning oxygen masks the immediate action on a cabin altitude warning. It does not expand into new regulatory domains (no equipment mandates, no broader operational restrictions). The instrument simply prescribes a textual AFM change and a 90‑day compliance window, consistent with the stated intent."},"complexity_factors":["Short, single-subject instrument (AFM wording change only)","Limited applicability to four Boeing 767 variant groups","Two variant-specific wording changes (one for -200/-300/-300F, one for -400ER)","Single compliance timeframe (90 days)","No technical modifications or equipment changes required","One external cross-reference (FAA AD 2003-14-08)","Issued under a single regulatory provision (CASR subregulation 39.1(1))"],"plain_english_summary":"**What this directive does (mechanically):**\n\n- It requires operators of Boeing 767-200, -300, -300F and -400ER aeroplanes to change the text in their Aircraft Flight Manual (AFM) emergency/non-normal procedures.  The revised wording instructs flightcrew to put on oxygen masks immediately when a cabin altitude warning (or rapid depressurization) occurs.  For -200, -300 and -300F series the revised text also tells crew to set regulators to 100%.\n- The change may be made by inserting a copy of this Airworthiness Directive into the appropriate AFM section.  Compliance must be completed within 90 days of the directive becoming effective.  The AD is issued under CASA’s regulatory power (CASR subregulation 39.1(1)).  The AD also notes a corresponding FAA AD (2003‑14‑08).\n\n**Who this affects:**\n\n- Aircraft operators and owners of Boeing 767-200, -300, -300F and -400ER aeroplanes registered or operated under Australian jurisdiction.  Practically, that means airlines, corporate operators, and maintenance/airworthiness staff who maintain AFMs and train crews.\n- Flightcrew, because it changes the immediate actions they must take when a cabin altitude warning illuminates.\n\n**Why it matters (claimed purpose and mechanical effect):**\n\n- The directive’s stated safety purpose is to reduce the risk of flightcrew incapacitation from hypoxia (lack of oxygen) by making donning oxygen masks the first and immediate step on a cabin altitude warning.  Mechanically, the AFM will unambiguously tell crews to put on masks immediately and (for some variants) set the oxygen regulators to 100%.\n\n**Who pays and who decides:**\n\n- Who pays: aircraft operators pay the modest costs of updating AFMs (inserting pages or reprinting), distributing the change to flightcrew, and training/briefing crews on the new text.  There is no equipment modification required by this AD.\n- Who decides: the Civil Aviation Safety Authority (CASA) delegate issued the AD; individual flightcrew decide in real time whether to follow the procedure (they are expected to comply with the AFM).  Maintenance/operations staff decide how to implement AFM revisions and crew training.\n\n**Trade-offs, implementation issues, and likely effects:**\n\n- Implementation burden: low. The action is a textual revision to the AFM and a crew procedural change; there is no physical modification to the aeroplane mandated.  The main costs are administrative (AFM revision, distribution) and marginal training/briefing time.\n- Incentives and behaviour change: the AD increases the likelihood that crews will don masks immediately on cabin altitude warnings.  That reduces the risk of hypoxia-related incapacitation, but it also places a short operational priority on donning masks before other steps (the AD leaves the remainder of the checklist unchanged).\n- Differences across fleet: the -200/-300/-300F wording explicitly requires \"Oxygen Masks & Regulators ON, 100%\" while the -400ER wording requires \"Put on oxygen masks and establish crew communications.\" Operators with mixed 767 variants must ensure variant-specific AFM pages are in use so crews follow the correct wording.\n- Risks and unintended consequences: minimal—chiefly the small risk that a procedural change is not communicated or trained adequately, which would limit its safety benefit. There is no direct economic burden on passengers or requirement to retrofit hardware.\n- Regulatory cross-reference: the AD notes the FAA AD (2003‑14‑08), indicating harmonisation with the US authority on the same issue.\n\n**Source testing (how the stated purpose maps to costs and incentives):**\n\n- Stated purpose: prevent crew incapacitation from hypoxia by making mask donning immediate.  That purpose is achieved by changing AFM wording, which directly changes crew behaviour at low administrative cost.  The opportunity cost is limited (time spent updating AFMs and briefing crews).  The directive does not impose hardware upgrades, so it avoids larger capital costs or operational downtime.\n\n(Referenced sections: Applicability; Requirement (wording changes for -200/-300/-300F and -400ER); Compliance (90 days); Background; note referencing FAA AD.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: mandating a specific flight manual revision for Boeing 767 aircraft to address a specific unsafe condition (flightcrew hypoxia risk). There is no scope creep or expansion beyond this original safety purpose."},"complexity_factors":["Very short document (approximately 400 words)","Only 4 defined applicability categories (B767-200, -300, -300F, -400ER)","Simple binary requirement structure (two slightly different procedures for two aircraft groups)","No cross-references to other legislation beyond a single note referencing FAA AD 2003-14-08","Single compliance deadline (90 days) with no conditional exceptions","Straightforward amendment instructions (text replacement with clear 'before' and 'after' wording)"],"plain_english_summary":"This safety order requires operators of Boeing 767-200/300/300F/400ER aircraft to revise flight manuals so pilots put on oxygen masks immediately when a cabin altitude warning occurs (with checklist wording adjusted accordingly). \n\nIt affects airlines operating those models, aims to prevent rapid hypoxia by making mask use the top priority, and must be implemented within 90 days of September 4, 2003."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b767-185-flightcrew-oxygen-masks","history":"/api/acts/ad-b767-185-flightcrew-oxygen-masks/history","analysis":"/api/acts/ad-b767-185-flightcrew-oxygen-masks/analysis","conflicts":"/api/acts/ad-b767-185-flightcrew-oxygen-masks/conflicts","importantCases":"/api/acts/ad-b767-185-flightcrew-oxygen-masks/important-cases","documents":"/api/acts/ad-b767-185-flightcrew-oxygen-masks/documents"}}