Zodiac aerotechnics oxygen mask regulators airworthiness directives
1 AD in the reference matching Zodiac aerotechnics oxygen mask regulators — from the Federal Register, checked every weekday. Applicability may depend on serial and effectivity: verify against the official AD before any maintenance action.
Reference last synced: 10/26/2026 17:00 UTC · 10,463 ADs indexed
AD 2018-21-14Effective 03/27/2019
Airworthiness Directives; Zodiac Aerotechnics Oxygen Mask Regulators
We are adopting a new airworthiness directive (AD) for certain Zodiac Aerotechnics (Zodiac) oxygen mask regulators. This AD was prompted by reports that certain silicon harness inflation hoses installed on certain flight crew quick donning mask harnesses have shown an unusually high premature rupture rate. This AD requires inspection and replacement of certain oxygen mask regulator harness inflation hoses. We are is…