# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2017-05-23 · Effective 2017-06-27 · 82 FR 23500
## Document
- **Document number:** 2017-10259
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 23500
- **Publication date:** 2017-05-23
- **Effective date:** 2017-06-27
- **FAA docket:** Docket No. FAA-2016-7426
## Abstract

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, and -200C series airplanes. This AD is intended to complete certain mandated programs to support the airplane reaching its limit of validity (LOV) of the engineering data that support the established structural maintenance program. This AD requires various repetitive inspections for cracking of certain lugs on the rear spar and horizontal stabilizer, related investigative and corrective actions if necessary, and replacement of the center section rear spar upper chord as applicable. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/05/23/2017-10259/airworthiness-directives-the-boeing-company-airplanes)
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