# Proposed AD FAA-2021-0269: Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-16-19
- Products: Airbus Canada Limited Partnership
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 16, 2021, 86 FR 20097
- Comments due: June 1, 2021
- Became: [AD 2021-16-19](https://openairdocs.org/ad/2021-16-19)
- Docket: FAA-2021-0269 (https://www.regulations.gov/docket/FAA-2021-0269, where comments are filed)
- Project: MCAI-2020-01417-T
- FR document: 2021-07201
- Official PDF: https://openairdocs.org/files/sha256/56/21/5621f7190e291140b2c553e9a20688cb423962033457a3dce928995c294dfba8 (from https://www.govinfo.gov/content/pkg/FR-2021-04-16/pdf/2021-07201.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/04/16/2021-07201/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/8A9B86653CAF6982862586B900711D0B.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0269

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Canada Limited Partnership Model BD-500-1A10 and

((Page 20098))

BD-500-1A11 airplanes. This proposed AD was prompted by reports of in- flight engine shutdowns (IFESs); investigation results indicated that this could be caused by high altitude climbs at higher thrust settings on engines with certain thrust ratings. This proposed AD would require amending the existing airplane flight manual (AFM) to incorporate a new limitation and revise certain normal procedures, as specified in a Transport Canada Civil Aviation (TCCA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 16, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-07201, comments due Jun 1, 2021 (https://www.federalregister.gov/documents/2021/04/16/2021-07201/airworthiness-directives-airbus-canada-limited-partnership-type-certificate-previously-held-by-c)

---
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.