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Proposed Rule

Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes

Notice of proposed rulemaking (NPRM).

📖 Research Context From Federal Register API

Summary:

The FAA proposes to adopt a new airworthiness directive (AD) for all MHI RJ Aviation ULC (type certificate previously held by Bombardier, Inc.) Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2C11 (Regional Jet Series 550), CL-600-2D15 (Regional Jet Series 705), CL-600-2D24 (Regional Jet Series 900), and CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by reports that the cockpit voice recorder (CVR) impact switch was installed in the wrong direction. This proposed AD would require an inspection of the CVR impact switch installation to confirm that the reset switch faces forward, and applicable on-condition actions, as specified in a Transport Canada AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.

Key Dates
Citation: 90 FR 9879
The FAA must receive comments on this proposed AD by April 7, 2025.
Comments closed: April 7, 2025
Public Participation
1 comment 3 supporting docs
View on Regulations.gov →
Topics:
Air transportation Aircraft Aviation safety Incorporation by reference Safety

Document Details

Document Number2025-02727
FR Citation90 FR 9879
TypeProposed Rule
PublishedFeb 19, 2025
Effective Date-
RIN2120-AA64
Docket IDDocket No. FAA-2025-0021
Pages9879–9881 (3 pages)
Text FetchedNo

Agencies & CFR References

CFR References:

Linked CFR Parts

PartNameAgency
14 CFR 39 Airworthiness Directives... Federal Aviation Administration

Paired Documents

TypeProposedFinalMethodConf
No paired documents

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