# Airworthiness Directives; Boeing Airplanes
> **Rule** · Final rule; request for comments. · Published 2023-05-17 · Effective 2023-06-01 · 88 FR 31469
## Document
- **Document number:** 2023-10624
- **Category:** airworthiness
- **Manufacturer:** Boeing
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 88 FR 31469
- **Publication date:** 2023-05-17
- **Effective date:** 2023-06-01
- **FAA docket:** Docket No. FAA-2023-1048
## Abstract

The FAA is adopting a new airworthiness directive (AD) for all Boeing Model B-17E, B-17F, and B-17G airplanes. This AD was prompted by a report indicating that the left front spar lower fitting had completely separated at the wing-to-fuselage joint, and the equivalent joint on the right side of the airplane was cracked. This AD requires inspections of the wing terminal-to-spar chord joints, and repair if necessary. The FAA is issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2023/05/17/2023-10624/airworthiness-directives-boeing-airplanes)
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