AD 2025-09-09

final rule
Data completeness: 80%

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

AD Number
2025-09-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2025-0021
FR Citation
90 FR 20380

Applicability

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

Unsafe Condition

The CVR impact switch was installed in the wrong direction, which could result in loss of data that could hinder the identification of the unsafe condition in the event of an accident and consequently impede the development of actions to address the unsafe condition that caused the accident.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect the CVR impact switch installation to confirm that the reset switch faces forward, and re-install any discrepant impact switch.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

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.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

This site is not affiliated with or endorsed by the FAA. Always verify with official sources.