AD 2021-09-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Degradation of bonds essential for the electrical grounding of equipment could affect the operation of certain systems, including engine ice protection, and result in loss of critical functions and/or multiple simultaneous flight deck effects, which may prevent continued safe flight and landing.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modifying the electrical bonding of certain support panel assemblies installed in the flight deck to provide sufficient electrical grounding for equipment installed in the flight deck.
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Compliance Time
Within 50 flight hours
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Affected Aircraft
The Boeing Company Model 737-8 and 737-9 airplanes manufactured after the design changes were implemented.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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