# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2017-11-28 · Effective 2018-01-02 · 82 FR 56156
## Document
- **Document number:** 2017-25379
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 56156
- **Publication date:** 2017-11-28
- **Effective date:** 2018-01-02
- **FAA docket:** Docket No. FAA-2017-0526
## Abstract

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This AD was prompted by reports of cracking in the upper aft skin at the rear spar of the wings. This AD requires repetitive inspections for cracking of the upper aft skin of the wings, 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/2017/11/28/2017-25379/airworthiness-directives-the-boeing-company-airplanes)
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