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Final ruleTook effect Feb. 5, 2026

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

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register Jan. 21, 2026. Document 2026-01033. Updated Nov. 15, 2026.

What it does

The FAA is adopting a new airworthiness directive (AD) for all MHI RJ Aviation ULC Model CL-600-2B19 (Regional Jet Series 100 & 440), 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 multiple reports of elevator autopilot control cable failure. This AD requires replacing the elevator autopilot control cables. The FAA is issuing this AD to address the unsafe condition on these products.

The Federal Aviation Administration's summary, as published in the Federal Register.

What changed in the regulation

1 part of Title 14 of the Code of Federal Regulations:

14 CFR 39

Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).

Compared with

The Federal Aviation Administration has published 489 final rules in 2026 so far, compared with 518 in all of 2025.

Counted by the Tribune from Federal Register records since Jan. 1, 2025.

Before this

603 earlier Federal Register documents under regulation identifier 2120-AA64 since Jan. 1, 2025.

Since then:

What happens next and when

This AD is effective February 5, 2026.

The agency's dates, word for word.

Document number2026-01033
ActionFinal rule; request for comments.
AgenciesTransportation Department; Federal Aviation Administration
PublishedJan. 21, 2026
Effective dateFeb. 5, 2026
Comments closeMarch 9, 2026
Regulation identifier (RIN)2120-AA64
DocketFAA-2026-0013

Source: the Federal Register (public domain). The document in the Federal Register