# Proposed AD FAA-2020-1034: Bombardier Inc., Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-07-06
- Products: Bombardier
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 27, 2020, 85 FR 75966
- Comments due: January 11, 2021
- Became: [AD 2021-07-06](https://openairdocs.org/ad/2021-07-06)
- Docket: FAA-2020-1034 (https://www.regulations.gov/docket/FAA-2020-1034, where comments are filed)
- Project: MCAI-2020-00951-T
- FR document: 2020-26044
- Official PDF: https://openairdocs.org/files/sha256/50/fa/50fa888ceaccf7451942b01a32b8ae47830468250dc291c7d0c69db5df64bc86 (from https://www.govinfo.gov/content/pkg/FR-2020-11-27/pdf/2020-26044.pdf)
- Federal Register: https://www.federalregister.gov/documents/2020/11/27/2020-26044/airworthiness-directives-bombardier-inc-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/487E646A2CD193708625862D0056EE58.0001
- Page: https://openairdocs.org/proposed/FAA-2020-1034

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Bombardier Inc., Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. This proposed AD was prompted by a determination that certain airplanes have outdated magnetic variation (MagVar) tables inside navigation systems. This proposed AD would require revising the existing airplane flight manual (AFM) to update the Flight Management System (FMS) and Inertial Reference System (IRS) limitations. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 27, 2020: Notice of proposed rulemaking (NPRM). (first notice), FR document 2020-26044, comments due Jan 11, 2021 (https://www.federalregister.gov/documents/2020/11/27/2020-26044/airworthiness-directives-bombardier-inc-airplanes)

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