AD 2022-23-10

final rule
Data completeness: 80%

Airworthiness Directives; The Boeing Company Airplanes

AD Number
2022-23-10
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2022-0156
FR Citation
87 FR 73448

Applicability

TypeManufacturerModelDetails
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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