# Proposed AD FAA-2007-0371: BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-10-05
- Products: BAE Systems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 26, 2007, 72 FR 72968
- Comments due: January 25, 2008
- Became: [AD 2008-10-05](https://openairdocs.org/ad/2008-10-05)
- Docket: FAA-2007-0371 (https://www.regulations.gov/docket/FAA-2007-0371, where comments are filed)
- Project: 2007-NM-269-AD
- FR document: E7-24922
- Official PDF: https://openairdocs.org/files/sha256/ef/bb/efbb0ec14741ee4fbe939b59c53fbfe9f7c2b7b2150569fc96b43caa592eaae1 (from https://www.govinfo.gov/content/pkg/FR-2007-12-26/pdf/E7-24922.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/12/26/E7-24922/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-model-avro-146-rj
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0FF1754BC32F6A11862573BD005247FD.0001
- Page: https://openairdocs.org/proposed/FAA-2007-0371

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from service history of incidents and accidents involving transport category turbojet airplanes without leading edge high lift devices, that shows that even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces can cause an adverse change in the stall speeds, stall characteristics, and the protection provided by the stall protection system. This proposed AD requires revising the airplane flight manual to include a new cold weather operations limitation. We are proposing this AD to prevent possible loss of control on takeoff resulting from even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces. The proposed AD would require actions that are intended to address the unsafe condition.

## Notices in this docket

- Dec 26, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-24922, comments due Jan 25, 2008 (https://www.federalregister.gov/documents/2007/12/26/E7-24922/airworthiness-directives-bae-systems-operations-limited-model-bae-146-and-model-avro-146-rj)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.