# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2022-07-21 · Effective 2022-08-25 · 87 FR 43395
## Document
- **Document number:** 2022-15492
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 87 FR 43395
- **Publication date:** 2022-07-21
- **Effective date:** 2022-08-25
- **FAA docket:** Docket No. FAA-2022-0010
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This AD was prompted by a report that during a C-check, corrosion was found in the vertical fin tension bolt hole located in the aluminum crown frames at a certain section. This AD requires inspecting certain vertical fin tension bolt holes; reviewing the bolt sealant application installation procedure in the existing maintenance or inspection program, as applicable; checking maintenance records to determine the replacement status of vertical fin tension bolts; and doing applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2022/07/21/2022-15492/airworthiness-directives-the-boeing-company-airplanes)
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