All Nippon Airways on Saturday canceled five domestic flights and reported delays to 10 others following a computer failure Friday.
The continued problems Saturday were caused by changes made to an aircraft management plan following the computer glitch, which caused the cancellation of 150 flights Friday, ANA officials said.
The system, which manages flight schedules, nationwide cargo transport and check-ins at Tokyo's Haneda airport, went down around 4:50 a.m. on Friday, the first day of a three-day weekend.
The failure added to congestion at Haneda airport, where security was tightened following the start of the U.S.-led war on Iraq. The problem was remedied about 2 1/2 hours later.