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 13, 2026. Document 2026-05007. Updated Nov. 13, 2026.

What it does

The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. This proposed AD was prompted by a Boeing investigation for manufacturing errors and excessive preload forces at the lower side of body (SOB) splice plates common to the lower outboard wing skins. That investigation concluded that shim gaps may have exceeded engineering allowances, and high pull up forces on the components may cause fatigue cracks to form at the fastener holes. This proposed AD would require, depending on configuration, repetitive ultrasonic (UT) inspections at certain splice plates, rear spar terminal fittings, lower chords, front spar terminal fittings, and jack pads for any cracks; repetitive detailed inspections (DET) of certain splice plates for any cracks; and applicable on-condition actions. 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

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

March 13, 2026 Final rule. Airworthiness Directives; Airbus Helicopters
March 13, 2026 Notice of proposed rulemaking (NPRM). Airworthiness Directives; Various Helicopters
March 13, 2026 Final rule. Airworthiness Directives; Airbus Helicopters Deutschland GmbH (AHD) Helicopters
March 13, 2026 Final rule. Airworthiness Directives; Airbus Helicopters
March 12, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
March 12, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes
March 12, 2026 Final rule; request for comments. Airworthiness Directives; Airbus SAS Airplanes
March 12, 2026 Final rule. Airworthiness Directives; The Boeing Company Airplanes

Since then:

What happens next and when

The FAA must receive comments on this proposed AD by April 27, 2026.

The agency's dates, word for word.

Check it yourself

The record as published

Document number	2026-05007
Action	Notice of proposed rulemaking (NPRM).
Agencies	Transportation Department; Federal Aviation Administration
Published	March 13, 2026
Comments close	April 27, 2026
Regulation identifier (RIN)	2120-AA64
Docket	FAA-2026-2295

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