AD 2021-03-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Dassault | Aviation | Airworthiness Directives; Dassault Aviation Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; Dassault Aviation Airplanes |
Unsafe Condition
Deviations during the assembly and overhaul of certain crew oxygen mask stowage boxes could lead to blocked oxygen supply flow to flight deck crew oxygen masks, which, in combination with in-flight depressurization, flight deck smoke, or a smoke evacuation procedure, may lead to flightcrew hypoxia and loss of useful consciousness and consequent loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Accomplish the actions specified in EASA Emergency AD 2021-0036-E, which includes an inspection (test) of crew oxygen mask stowage boxes having part number CSD30-005-X-X (`X' can represent any alphanumeric value) for discrepancies (an inability to clearly hear oxygen flowing out of the mask during a functional test or see that the yellow blinker on the stowage box does not illuminate), and replacement if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
All Dassault Aviation Model FALCON 7X airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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