Airworthiness Directives; The Boeing Company Airplanes

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register March 18, 2026. Document 2026-05327. Updated Nov. 13, 2026.

What it does

The FAA proposes to supersede Airworthiness Directive (AD) 2019-20-07, which applies to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2019-20-07 requires repetitive operational checks of the leading edge (LE) outboard (OB) slats and applicable on- condition actions. AD 2019-20-07 also requires revising the airplane flight manual (AFM) to prohibit flap retraction under icing conditions and revising the existing maintenance or inspection program, as applicable, to incorporate a new operation check. Since the FAA issued AD 2019-20-07, the manufacturer developed further actions to address the unsafe condition. This proposed AD would retain all requirements of AD 2019-20-07 and would require replacing the LE outboard geared rotary actuator (GRA) with a LE outboard lockout actuator (LEOLA) at leading edge OB slat locations and revising the existing maintenance or inspection program, as applicable, to incorporate a new certification maintenance requirement (CMR). This proposed AD would also remove airplanes from the applicability. The FAA is proposing this AD to address the unsafe condition on these products.

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

What it would change

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

14 CFR 39

Before this

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

March 17, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; MHI RJ Aviation ULC (Type Certificate Previously Held by Bombardier, Inc.) Airplanes
March 17, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Airbus SAS Airplanes
March 17, 2026 Final rule. Airworthiness Directives; Extra Aerobatic Aircraft GmbH Airplanes
March 16, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
March 16, 2026 Final rule. Airworthiness Directives; Airbus Helicopters
March 16, 2026 Final rule; request for comments. Airworthiness Directives; Leonardo S.p.a. Helicopters
March 16, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Engines
March 13, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; The Boeing Company Airplanes

Since then:

What happens next and when

The FAA must receive comments on this proposed AD by May 4, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-05327
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	March 18, 2026
Comments close	May 4, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-2712

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