# Airworthiness Directives; The Boeing Company Airplanes
> **Rule** · Final rule. · Published 2017-12-14 · Effective 2018-01-18 · 82 FR 58709
## Document
- **Document number:** 2017-26619
- **Category:** airworthiness
- **Manufacturer:** The Boeing Company
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 58709
- **Publication date:** 2017-12-14
- **Effective date:** 2018-01-18
- **FAA docket:** Docket No. FAA-2017-0473
## 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 a report indicating that wear of the bearing plate slider bushings could cause disconnection of certain elevator hinges, which could excite the horizontal stabilizer under certain in-flight speed/altitude conditions and lead to degradation of the structure. This AD requires repetitive inspections and checks of certain elevator hinges and related components, repetitive replacements and tests of the bearing plate, and related investigative and corrective actions, if necessary. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/12/14/2017-26619/airworthiness-directives-the-boeing-company-airplanes)
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