Boeing 757s need new maintenance checks for parts that wear out faster than expected

The US aviation regulator is requiring new maintenance rules for certain Boeing 757 airplanes. This means airlines must inspect specific parts more often or replace them sooner than before.

Airlines operate on strict maintenance schedules. When a regulator finds that a part wears out faster than expected, it forces a change to those schedules. This directly affects how often planes are in service and the cost of keeping them flying.