# Airworthiness Directives; Boeing Model 737, 747, and 777 Series Airplanes
> **Rule** · Final rule. · Published 2001-06-11 · Effective 2001-07-16 · 66 FR 31129
## Document
- **Document number:** 01-13998
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 66 FR 31129
- **Publication date:** 2001-06-11
- **Effective date:** 2001-07-16
- **FAA docket:** Docket No. 2000-NM-156-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737, 747, and 777 series airplanes, that requires replacement of the seat track fittings on all passenger seats with new, improved fittings. The actions specified by this AD are intended to prevent unrestrained movement of the passenger seats during high forward deceleration of the airplane, which could result in injury to the passengers or crew members during an emergency landing.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/06/11/01-13998/airworthiness-directives-boeing-model-737-747-and-777-series-airplanes)
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