# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2017-08-21 · Effective 2017-09-25 · 82 FR 39511
## Document
- **Document number:** 2017-17202
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 39511
- **Publication date:** 2017-08-21
- **Effective date:** 2017-09-25
- **FAA docket:** Docket No. FAA-2017-0131
## Abstract

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-300, -400, and -500 series airplanes. This AD was prompted by a report of fatigue cracking found in a certain fuselage frame common to the water tank support intercostal clip located between certain stringers. This AD requires inspections for any cracking of a certain fuselage frame, and repair if necessary. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/08/21/2017-17202/airworthiness-directives-the-boeing-company-airplanes)
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