{"id":"F2008L00607","name":"AD/OXY/7 Amdt 1 - Eros Oxygen Masks","slug":"ad-oxy-7-amdt-1-eros-oxygen-masks","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":119585,"registerId":"commonwealth-F2008L00607-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Oxygen Systems","sectionType":"division","heading":"Oxygen Systems","content":"### Oxygen Systems\n\n| AD/OXY/7 Amdt 1 | Eros Oxygen Masks | 3/2008 |\n| --------------- | ----------------- | ------ |\n\n| Applicability: | Eros quick donning oxygen masks MA10-( )-( ), MB10-( )-( ) and MC10-( )-( ) with serial number less than 19108.                                                                                                               |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. If not previously accomplished in accordance with the original issue of this Directive (AD/OXY/7), inspect the masks in accordance with Eros Service Bulletin (SB) MA/B/C10-35-42 Revision 1.                              |\n|                | 2. If not previously accomplished in accordance with AD/OXY/7, modify the masks in accordance with either Eros SBs MA/B/C10-35-29 or MSE/MC10-35-45 or MA/B/C/F10-35-89.                                                      |\n|                | Later revisions of the above SBs approved by either the French Direction Générale de l’Aviation Civile (DGAC) or the European Aviation Safety Agency (EASA) are acceptable for compliance with this Amendment.                |\n|                | Note: DGAC AD 91-176(AB) refers.                                                                                                                                                                                              |\n| Compliance:    | For Requirement 1 - Before 13 April 2008.                                                                                                                                                                                     |\n|                | For Requirement 2 - Within 12 months after the effective date of this Amendment.                                                                                                                                              |\n|                | This Amendment becomes effective on 13 March 2008.                                                                                                                                                                            |\n| Background:    | The initial issue of this Directive required an inspection and modification to ensure the integrity of the oxygen mask.                                                                                                       |\n|                | This Amendment continues the requirements of the initial Directive but introduces alternate methods of modifying the masks. The Amendment also allows compliance in accordance with later revisions of the service bulletins. |\n|                | The original issue of this Directive became effective on 3 February 1992.                                                                                                                                                     |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n29 January 2008","sortOrder":0},{"sectionNumber":"AD/OXY/7 Amdt 1","sectionType":"part","heading":"AD/OXY/7 Amdt 1","content":"## AD/OXY/7 Amdt 1","sortOrder":1},{"sectionNumber":"Eros Oxygen Masks","sectionType":"part","heading":"Eros Oxygen Masks","content":"## Eros Oxygen Masks","sortOrder":2},{"sectionNumber":"3/2008","sectionType":"part","heading":"3/2008","content":"## 3/2008","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original 1992 directive's core safety purpose (ensuring oxygen mask integrity). It expands compliance options by allowing alternative modification methods and accepting later revisions of service bulletins, but does not broaden the scope beyond the original equipment safety goal."},"complexity_factors":["Single, narrow applicability (three specific mask models with serial number cutoff)","Only two substantive requirements (inspect and modify)","Minimal defined terms (only model numbers and serial ranges specified)","Simple conditional logic ('if not previously accomplished')","Short document (approximately 250 words of substantive content)","Clear compliance dates with no nested exceptions","Cross-references limited to specific service bulletins and one French DGAC AD"],"plain_english_summary":"CASA issues a mandatory Airworthiness Directive requiring owners/operators of Eros quick-donning crew oxygen masks (models MA10, MB10, MC10 with S/Ns <19108) to inspect them per the manufacturer and complete an approved modification. It affects commercial and corporate aircraft using these masks and ensures mask integrity for emergency oxygen use. Inspection due 13 April 2008; modification within 12 months of 13 March 2008."},"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The amendment preserves the original safety objective—inspect and modify Eros oxygen masks to ensure integrity—but broadens acceptable technical methods by adding alternate service bulletins and allowing later DGAC/EASA‑approved revisions. Applicability (models and serial-number cutoff) and the inspection/modification requirement remain the same (Background; Applicability; Requirement 1 & 2)."},"complexity_factors":["Multiple alternative service bulletins authorised for the same modification task (MA/B/C10-35-29, MSE/MC10-35-45, MA/B/C/F10-35-89) — operators must choose which procedure to follow (Requirement 2).","Acceptance of later revisions only if approved by DGAC or EASA introduces dependence on external regulator approvals and version control of SBs (Requirement 2).","Two separate compliance actions with different deadlines: inspection (Requirement 1: before 13 April 2008) and modification (Requirement 2: within 12 months) — creates scheduling and resource demands.","Applicability limited by equipment model and serial number (MA10/MB10/MC10 with serial < 19108) — requires fleet-level tracking to identify affected units (Applicability).","Technical nature of inspections/modifications implies maintenance labour, parts, and possible aircraft downtime — operators bear direct costs (Requirement 1 & 2).","Cross-reference to DGAC AD 91-176(AB) adds regulatory layering that may affect interpretation or additional obligations (Note).","Delegation of acceptable methods to later-authority-approved SB revisions gives regulators (DGAC/EASA) operative discretion over accepted compliance pathways (Requirement 2).","Recordkeeping and proof of compliance may vary depending on which SB revision is used, increasing administrative complexity."],"plain_english_summary":"**What it does:** Requires operators/maintenance organisations to inspect and modify certain Eros quick‑donning oxygen masks and allows compliance using one of several approved service‑bulletin methods or later DGAC/EASA‑approved revisions.  \n**Who it affects and why it matters:** Affects aircraft with Eros MA10/MB10/MC10 masks (serials < 19108). It matters because it enforces deadlines for inspection and modification to verify and maintain mask integrity (Background)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks","history":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks/history","analysis":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks/analysis","conflicts":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks/conflicts","importantCases":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks/important-cases","documents":"/api/acts/ad-oxy-7-amdt-1-eros-oxygen-masks/documents"}}