# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2022-11-30 · Effective 2023-01-04 · 87 FR 73448
## Document
- **Document number:** 2022-26080
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 73448
- **Publication date:** 2022-11-30
- **Effective date:** 2023-01-04
- **FAA docket:** Docket No. FAA-2022-0156
## Abstract

The FAA is superseding Airworthiness Directive (AD) 2021-06- 03, which applied to all The Boeing Company Model 777F series airplanes. AD 2021-06-03 required deactivating the potable water system. 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 retains the actions required by AD 2021-06-03 and requires installing a shroud to the water supply line in the forward cargo compartment, and performing a leak test of the potable water system. For certain airplanes, this AD also requires replacing tubes and hoses from the water supply line and installing a shroud to the water return line. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/11/30/2022-26080/airworthiness-directives-the-boeing-company-airplanes)
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