FAA Orders 737 MAX Fuselage Inspections on 471 US Aircraft

This is a developing story. Information may change as official details are released.

This is original reporting and analysis by AirPro News.

The Federal Aviation Administration (FAA) has mandated structural inspections for 471 U.S.-registered Boeing 737 MAX aircraft to detect potential cracking around the forward galley door, a condition that could compromise the fuselage structural integrity if left unaddressed.

Published in the Federal Register on August 6, 2026, Airworthiness Directive (AD) 2026-15-11 requires operators of Boeing 737-8, 737-9, and 737-8200 aircraft to inspect the fuselage skin and bear strap at the forward upper corner of the forward galley door cutout. The directive takes effect on September 10, 2026.

Regulatory requirements and compliance costs

The FAA initiated the rulemaking process following reports of structural fatigue in older Boeing 737 Next Generation (737NG) models. A Boeing investigation into the 737-600, 737-700, 737-800, and 737-900 series determined that high operating stresses caused stress concentration at the corner of the door cutout, leading to cracks in the fuselage skin and bear strap.

While no identical cracks have been documented on the newer 737 MAX fleet, the FAA concluded that the shared design and manufacturing processes make the newer aircraft susceptible to the same fatigue conditions.

The regulatory agency stated the inspections are necessary to prevent the inability of the principal structural element to sustain limit loads. Failure of these components would adversely affect the structural integrity of the airplane.

Operators must perform an initial external general visual inspection. The FAA estimates this initial check will require one work-hour per aircraft at a cost of $85, bringing the total estimated compliance cost for the U.S. fleet to $40,035.

Inspection timeline and fleet applicability

Boeing previously issued Alert Requirements Bulletin 737-53A1408 RB on December 20, 2024, outlining the necessary inspection procedures for operators. The FAA subsequently published a Notice of Proposed Rulemaking on November 25, 2025, before finalizing the directive.

The mandate applies specifically to the Boeing 737-8, 737-9, and the high-density 737-8200 variants operating under U.S. registry. International regulators typically follow FAA airworthiness directives for U.S.-manufactured aircraft, which may expand the inspection requirements to the global 737 MAX fleet.

AirPro News analysis

We view this directive as a standard proactive regulatory measure rather than an immediate grounding threat. The transition of structural inspection requirements from the 737NG to the 737 MAX is an expected part of the aircraft lifecycle, given the shared fuselage architecture between the generations. The low estimated compliance cost of $85 per aircraft indicates that the initial visual inspections can be integrated into routine line maintenance without causing significant operational disruptions for airlines.

Sources: Federal Aviation Administration