# Airworthiness Directives; Boeing Model 767 Series Airplanes Equipped with General Electric Model CF6-80C2 Series Engines
> **Rule** · Final rule; request for comments. · Published 2000-05-04 · Effective 2000-05-19 · 65 FR 25833
## Document
- **Document number:** 00-11061
- **Category:** airworthiness
- **Manufacturer:** Boeing Model 767 Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 65 FR 25833
- **Publication date:** 2000-05-04
- **Effective date:** 2000-05-19
- **FAA docket:** Docket No. 2000-NM-94-AD
## Abstract

This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes, that currently requires tests, inspections, and adjustments of the thrust reverser system. That AD also requires installation of a terminating modification, and repetitive follow-on actions. This amendment revises certain actions in the existing AD. This amendment is prompted by a report indicating that certain instructions referenced in the existing AD for accomplishment of the cone brake test of the center drive unit are not accurate for certain airplanes. The actions specified in this AD are intended to ensure the integrity of the fail safe features of the thrust reverser system by preventing possible failure modes in the thrust reverser control system that can result in inadvertent deployment of a thrust reverser during flight.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/05/04/00-11061/airworthiness-directives-boeing-model-767-series-airplanes-equipped-with-general-electric-model)
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