# Proposed AD FAA-2010-0477: BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-18-10
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 19, 2010, 75 FR 27959
- Comments due: July 6, 2010
- Became: [AD 2010-18-10](https://openairdocs.org/ad/2010-18-10)
- Docket: FAA-2010-0477 (https://www.regulations.gov/docket/FAA-2010-0477, where comments are filed)
- Project: 2009-NM-226-AD
- FR document: 2010-11903
- Official PDF: https://openairdocs.org/files/sha256/7a/c1/7ac15a827423d39429d7c4c8bc98f51b2fc547e40f257419ff6b66d7e4167b1f (from https://www.govinfo.gov/content/pkg/FR-2010-05-19/pdf/2010-11903.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/05/19/2010-11903/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/39C43668CA6D8E0D86257728004E8BF0.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0477

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Three events have been reported where insulation material was found to be fouling pulleys in the aileron interconnect circuit in the cabin roof area. Interference between the cable and the insulation bag causes the material to be drawn into the gap between the pulley and the pulley guard. This condition, if not detected and corrected, could lead to restricted aileron movement and consequently, reduced control of the aeroplane. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- May 19, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-11903, comments due Jul 6, 2010 (https://www.federalregister.gov/documents/2010/05/19/2010-11903/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-avro-146-rj-airplanes)

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