United Airlines was forced to cancel or delay some Boeing 757 flights Feb. 15 when the carrier discovered it had overlooked a required inspection on this fleet.
The airline began inspecting its 96 757s while they were on the ground or when they landed. The checks, which take up to 90 minutes, are reportedly expected to be finished Feb. 16. United found the lapse itself during a quality assurance check, and started the inspections immediately.
The problem stems from a 2004 airworthiness directive requiring the inspection of air data computers. So far none of the computers have been found to be faulty. The Continental Airlines unit is believed to be unaffected, since it has already performed the inspections on its 757s.