470 Boeing aircraft are checked for cracks around doors

The cracks have not yet been observed in the Max fleet – but since their design and production processes are similar in this area, the inspections have been extended to them.

Verification becomes mandatory

The FAA made it mandatory to check some 737-8, 737-9 and 737-8200 Max aircraft for cracks in a front door corner. The order takes effect on September 10th.

Cracks could compromise the structural integrity of the machines, it said. Boeing has struggled with various quality problems in recent years, but has recently made significant progress.