AD 2022-23-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Water entering the EE cooling system via the cooling filter, which can affect multiple EE bay racks and line replaceable units (LRUs), resulting in loss of functionality or inaccurate output of critical electrical systems and possible loss of control of the airplane.
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Required Actions
Deactivating the potable water system, installing a shroud to the water supply line in the forward cargo compartment, performing a leak test of the potable water system, replacing tubes and hoses from the water supply line and installing a shroud to the water return line for certain airplanes, and installing a temporary water line shroud in accordance with Boeing Alert Service Bulletin 777-38A0047, dated March 30, 2021.
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Compliance Time
Before further flight
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Affected Aircraft
The Boeing Company Model 777F series airplanes, line numbers (L/Ns) 960 through L/N 1689 inclusive.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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