A software problem yesterday with the computer system used to controls reservations, check-in and baggage control for All Nippon Airways Co.'s (ANA) at 50 airports across Japan forced ANA backing into using manual procedures for those tasks, the Japanese Times reported.
As a result, ANA was forced to cancel 53 domestic flights and delay 200 others, affecting over 51,000 passengers in all. The system was back up later in the day Sunday, but the impacts will last well into today.
This is the second time that ANA has had a major problem with its reservation management system. In May 2007, another malfunction led to the cancellation of 131 flights and affected over ANA 70,000 passengers.