# Proposed AD FAA-2018-1008: Bombardier, Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2019-12-11
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 11, 2018, 83 FR 63594
- Comments due: January 25, 2019
- Became: [AD 2019-12-11](https://openairdocs.org/ad/2019-12-11)
- Docket: FAA-2018-1008 (https://www.regulations.gov/docket/FAA-2018-1008, where comments are filed)
- FR document: 2018-26627
- Official PDF: https://openairdocs.org/files/sha256/4a/67/4a67c51307afcd462fd7771b8b71e995a19598d32f4fef0b46e79b520f4bb4cc (from https://www.govinfo.gov/content/pkg/FR-2018-12-11/pdf/2018-26627.pdf)
- Federal Register: https://www.federalregister.gov/documents/2018/12/11/2018-26627/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/836FCCB66964F8708625836000547527.0001
- Page: https://openairdocs.org/proposed/FAA-2018-1008

## Summary

We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This proposed AD was prompted by reports indicating there is a possibility of excessive error in the signal generated by the angle of attack (AOA) transducer. This proposed AD would require replacing certain AOA transducers. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 11, 2018: Notice of proposed rulemaking (NPRM). (first notice), FR document 2018-26627, comments due Jan 25, 2019 (https://www.federalregister.gov/documents/2018/12/11/2018-26627/airworthiness-directives-bombardier-inc-airplanes)

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