AD 2014-05-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Erratic low range radio altimeter (LRRA) operation while airborne, potentially caused by antenna alteration-induced micro cracks, coax cable damage, or inadequate antenna monitoring capabilities in some radio altimeter transceivers.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace radio altimeter transceivers with upgraded units for certain airplanes. Replace low range radio altimeter antennas with new antennas for all airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
As specified in the referenced service information (Boeing Alert Service Bulletins 777-34A0191 and 777-34A0192).
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Affected Aircraft
The Boeing Company Model 777 airplanes, as specified in the referenced service information.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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