Superseded. This AD was superseded by AD 2022-23-10. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2021-06-03
Effective 03/05/2021 · Published 03/05/2021
Airworthiness Directives; The Boeing Company Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 777F series airplanes. This AD was prompted by a report of a water supply line that detached at a certain joint located above an electronic equipment (EE) cooling filter, leading to water intrusion into the forward EE bay. This AD requires deactivating the potable water system. The FAA is issuing this AD to address the unsafe con…