Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register July 30, 2026. Document 2026-15411. Updated Nov. 7, 2026.

What it does

The FAA is superseding Airworthiness Directive (AD) 2025-06- 01, which applied to all Airbus Canada Limited Partnership Model BD- 500-1A10 and BD-500-1A11 airplanes. AD 2025-06-01 required revising the existing airplane flight manual (AFM) to incorporate the procedures for the flightcrew to manually isolate the opposite functional engine in the event of an engine bleed duct large leak condition. Since the FAA issued AD 2025-06-01, an electronic engine control (EEC) software update has been developed to address the unsafe condition. This AD continues to require the actions in AD 2025-06-01 and requires installing a certain EEC software update on both engines. This AD also removes airplanes from the applicability. 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 482 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

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

July 30, 2026 Final rule. Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
July 30, 2026 Final rule. Airworthiness Directives; Stemme GmbH Gliders
July 30, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
July 30, 2026 Final rule. Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
July 30, 2026 Final rule. Airworthiness Directives; Airbus SAS Airplanes
July 30, 2026 Final rule. Airworthiness Directives; Bombardier, Inc., Airplanes
July 30, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
July 30, 2026 Final rule. Airworthiness Directives; Leonardo S.p.a. Helicopters

Since then:

What happens next and when

This AD is effective September 3, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-15411
Action	Final rule.
Agencies	Transportation Department; Federal Aviation Administration
Published	July 30, 2026
Effective date	Sept. 3, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-1336

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