AD 2021-22-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
| aircraft | Aviat | Various | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
cracks around the antenna/unit installation, which, if unchecked, could lead to rapid decompression of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
revising the existing maintenance or inspection program, as applicable, to incorporate more restrictive tasks and limitations, as specified in EASA AD 2021-0138, which is incorporated by reference.
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
The Boeing Company Model 747-400F series airplanes with U.S. STC ST04393NY embodied.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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