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The Next Boeing Problem Is Not Software: The FAA Is Checking MAX Fuselages for Cracks

Aviation Desk|Saturday 8 August 2026|5 min read
The Next Boeing Problem Is Not Software: The FAA Is Checking MAX Fuselages for Cracks

B737 MAX

The Federal Aviation Administration has issued an airworthiness directive requiring inspections of 471 US-registered Boeing 737 MAX 8, MAX 9 and 737-8200 aircraft after reports of cracks in the bear strap and fuselage skin near the forward galley door cutout. The directive takes effect on 10 September 2026. No cracks have yet been confirmed on MAX airframes, but the agency acted because the design and build process are shared with the earlier 737 Next Generation fleet, where the problem first appeared. Worldwide the same requirement is expected to cover roughly 1429 aircraft.

A bear strap is a reinforcing layer that wraps around a cutout in the fuselage skin. Door openings interrupt the continuous load path of the pressure vessel so the strap redistributes stresses that would otherwise concentrate at the corners. The location in question is at the forward upper corner of the forward galley door on the right side just behind the cockpit. Each pressurisation cycle repeatedly loads that corner. Over thousands of flights, high operating stresses can initiate cracks in the strap or the adjacent skin. Left undetected, a crack can grow until a principal structural element can no longer carry limit loads.

The inspection regime is the standard response to fatigue findings in transport-category aircraft. Operators must examine the fuselage skin for existing repairs, then perform detailed and eddy-current checks of the skin and bear strap. Compliance times are set according to flight cycles so that any crack is found and repaired before it reaches critical length. On-condition repairs are required before the aeroplane returns to service. The intervals give multiple opportunities to detect damage and the FAA has not grounded the fleet.

In India, Akasa Air and Air India Express have this generation of planes, and there seems to be no impact currently with their operation.

This directive moves the post-MAX safety conversation from flight-control software to airframe fatigue. The earlier MCAS failures were software and systems issues. The current order concerns a structural detail that is a product of the same fuselage architecture and manufacturing process used on both NG and MAX aeroplanes. It does not indicate an imminent catastrophic failure. It does show that the airframe itself remains subject to the same long-term inspection and modification programmes that have governed earlier 737 generations. The practical effect is another recurring maintenance task. The regulators and the public are being reminded that once an aeroplane type enters high-cycle service, the focus shifts from novel systems to the ordinary but unforgiving physics of pressurisation and metal fatigue.

Source: FAA

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