# Proposed AD FAA-2022-0679: MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2023-06-06
- Products: MHI RJ Aviation ULC
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM).
- Published: January 13, 2023, 88 FR 2279
- Comments due: February 27, 2023
- Became: [AD 2023-06-06](https://openairdocs.org/ad/2023-06-06)
- Docket: FAA-2022-0679 (https://www.regulations.gov/docket/FAA-2022-0679, where comments are filed)
- Project: MCAI-2021-01213-T
- FR document: 2023-00130
- Official PDF: https://openairdocs.org/files/sha256/91/2b/912b17fe27e1f4b6a6f0170e1d46a0832120d1cc43f9d134eeece29efd2d2e36 (from https://www.govinfo.gov/content/pkg/FR-2023-01-13/pdf/2023-00130.pdf)
- Federal Register: https://www.federalregister.gov/documents/2023/01/13/2023-00130/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FR-ADNPRM-2023-00130-00000000000.0001
- Page: https://openairdocs.org/proposed/FAA-2022-0679

## Summary

The FAA is revising a notice of proposed rulemaking (NPRM) that would have applied to all MHI RJ Aviation ULC Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) airplanes, Model CL-600-2C11 (Regional Jet Series 550) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This action revises the NPRM by proposing to require revising the existing maintenance or inspection program, as applicable, to incorporate two aircraft maintenance manual (AMM) tasks. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is requesting comments on this SNPRM.

## Notices in this docket

- Jun 16, 2022: Notice of proposed rulemaking (NPRM). (first notice), FR document 2022-12934, comments due Aug 1, 2022 (https://www.federalregister.gov/documents/2022/06/16/2022-12934/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc)
- Jan 13, 2023: Supplemental notice of proposed rulemaking (SNPRM)., FR document 2023-00130, comments due Feb 27, 2023 (https://www.federalregister.gov/documents/2023/01/13/2023-00130/airworthiness-directives-mhi-rj-aviation-ulc-type-certificate-previously-held-by-bombardier-inc)

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