Airworthiness Directives › 2025-09-09
AD 2025-09-09: MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
Published May 14, 2025 · effective June 18, 2025 · 90 FR 20380 · Docket No. FAA-2025-0021
What the FAA requires
The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC 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 AD was prompted by reports that the cockpit voice recorder (CVR) impact switch was installed in the wrong direction. This AD requires 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 incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Applicability
This AD applies to 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, certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 23, Communications. (e) Unsafe Condition This AD was prompted by reports that a cockpit voice recorder (CVR) impact switch was installed in the wrong direction. The impact switch disables power to the CVR in the event of an accident to prevent overwriting cockpit recordings. The FAA i
Part numbers this directive names (1)
Extracted from the directive text. For each: the NSN cross-reference where one exists, sellers listing it here, and open DLA solicitations on the NSN.
| Part number | NSN | Sellers here | Open DLA RFQs | |
|---|---|---|---|---|
| 3L0-453-2 | 01-444-0123 | 0 | 0 | Find it → |
Rulemaking history
- Proposed rule (NPRM) published February 19, 2025 · read
- Final rule published May 14, 2025, effective June 18, 2025
Other recent directives, MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
- AD 2026-15-16 2026-07-30
- AD 2026-08-02 2026-04-21
- AD 2026-05-05 2026-03-06
- AD 2026-02-03 2026-01-21
- AD 2025-25-03 2025-12-12
- AD 2025-22-02 2025-11-05
- AD 2025-11-11 2025-06-10
- AD 2025-02-03 2025-02-10
Source: Federal Register, FAA final rules under 14 CFR part 39, refreshed daily. Part numbers are extracted from the directive text by pattern and may include service-bulletin or kit numbers; the directive itself is the authority. Watch any part number on its page and we email you when a new directive or service difficulty report names it.
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