# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2023-02-28 · Effective 2023-04-04 · 88 FR 12550
## Document
- **Document number:** 2023-04024
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 88 FR 12550
- **Publication date:** 2023-02-28
- **Effective date:** 2023-04-04
- **FAA docket:** Docket No. FAA-2022-0810
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This AD was prompted by fuel system reviews conducted by the manufacturer. This AD requires, depending on the airplane configuration, installation of Teflon sleeves, cap sealing of fasteners, detailed inspections, and corrective actions. This AD also requires revising the existing maintenance or inspection program, as applicable, to incorporate more restrictive airworthiness limitations (AWLs). The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/02/28/2023-04024/airworthiness-directives-the-boeing-company-airplanes)
---
*AI Analytics · CC0 1.0*