AD 2026-03-09
Unsafe Condition
Occurrences of PBE not delivering oxygen once donned, caused by a manufacturing issue.
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Required Actions
Replace affected PBE and prohibit installation of affected PBE. Adhere to the life limit of 10 years (120 months) for affected PBE.
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Compliance Time
Within 14 days or 3 months, depending on the applicable conditions, unless the PBE is over the life limit.
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Affected Aircraft
Aerospace & Defense Oxygen Systems SaS (Part of Safran Aerosystems) Portable Breathing Equipment (PBE), as identified in Safran Aerosystems Service Bulletin 1540F-35-002, Revision 01, dated January 5, 2026.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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