# Proposed AD FAA-2021-0264: MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-13-11
- Products: MHI RJ Aviation ULC
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 7, 2021, 86 FR 17998
- Comments due: May 24, 2021
- Became: [AD 2021-13-11](https://openairdocs.org/ad/2021-13-11)
- Docket: FAA-2021-0264 (https://www.regulations.gov/docket/FAA-2021-0264, where comments are filed)
- Project: MCAI-2020-01416-T
- FR document: 2021-07050
- Official PDF: https://openairdocs.org/files/sha256/3f/7b/3f7be955f8af4ae7a786e45eed86e5448063dd46fc8917276a6a7c01bedcd5ca (from https://www.govinfo.gov/content/pkg/FR-2021-04-07/pdf/2021-07050.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/04/07/2021-07050/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C16E77E29196B186862586B00077D794.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0264

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain MHI RJ Aviation ULC Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24 (Regional Jet Series 900) airplanes. This proposed AD was prompted by a report that the lower aft outboard supporting structure of galley 2 does not meet certification requirements for all flight and/or emergency landing loads. This proposed AD would require modifying the floor structure between certain fuselage stations. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 7, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-07050, comments due May 24, 2021 (https://www.federalregister.gov/documents/2021/04/07/2021-07050/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc)

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