# Airworthiness Directives; BAe Systems (Operations) Limited Model Avro 146-RJ85A and 146-RJ100A Series Airplanes
> **Rule** · Final rule; request for comments. · Published 2001-08-23 · Effective 2001-09-07 · 66 FR 44293
## Document
- **Document number:** 01-21104
- **Category:** airworthiness
- **Manufacturer:** BAe Systems (Operations) Limited Model Avro 146-RJ85A and 146-RJ100A Series
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 66 FR 44293
- **Publication date:** 2001-08-23
- **Effective date:** 2001-09-07
- **FAA docket:** Docket No. 2001-NM-223-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain BAe Systems (Operations) Limited Model Avro 146- RJ85A and 146-RJ100A series airplanes. This action requires replacement of bolts in the wing rear spar at the center fuel tank. This action is prompted by mandatory continuing airworthiness information from a foreign civil airworthiness authority. This action is necessary to prevent the failure of bolts in the wing rear spar at the center fuel tank, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2001/08/23/01-21104/airworthiness-directives-bae-systems-operations-limited-model-avro-146-rj85a-and-146-rj100a-series)
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