Airworthiness directives › 2026-03-09
AD 2026-03-09 Airworthiness Directives; Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) (Formerly Known as Air Liquide) Portable Breathing Equipment (PBE)
Applicability*9
This AD applies to Aerospace & Defense Oxygen Systems SaS (part of Safran Aerosystems) (formerly known as Air Liquide) portable breathing equipment (PBE), part number (P/N) 15-40F-11 and P/N 15-40F-80, having a manufacturing date between March 2015 and March 2017 (inclusive), and having a serial number listed in Appendix A (modified January 5, 2026, 8:51 p.m. UTC+01:00) of Safran Aerosystems Service Bulletin 1540F-35-002, Revision 01, dated January 5, 2026. These PBE are eligible for installation on any aircraft and may have been installed during the aircraft manufacturing process (production line), or in-service modification, either through a supplemental type certificate, or using type certificate holder (TCH) approved modification instructions, or through a non-TCH modification approval.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2025-0297, dated December 23, 2025 (EASA AD 2025-0297).
Unsafe condition
This AD was prompted by reports of occurrences of PBE not delivering oxygen once donned. Following investigation, a manufacturing issue has been identified, affecting certain PBE. The FAA is issuing this AD to address affected PBE. The unsafe condition, if not addressed, could lead to flight or cabin crewmember incapacitation, possibly affecting crewmember capability to accomplish tasks during an emergency, or resulting in fatal injury to that crewmember.
Affected ADs
None.
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