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SEATTLE -- Alaska Airlines is recovering from a computer networking problem that threw its passenger check-in system offline early Monday morning.

Shortly before 1 p.m. PT, Alaska Airlines said the system was back in operation. Flights scheduled to depart Monday afternoon are expected to leave on schedule, but the airline was dealing with passengers who were scheduled for morning departures.

Patti Miller - couple were canceled - most are running very late - a couple have taken off recently
takes a while to recoup, Alaska still working out resolution

Patti Miller, spokesperson for the Boise Airport, says the first flight made it out of Boise Monday morning. Since then two have been canceled and several are running very late. Miller says a couple Alaska flights have taken off Monday afternoon. There are usually 16 Alaska flights per day.

At Sea-Tac airport, hundreds of passengers were standing in lines that spilled outside the building.

The problem's cause was a combination of two fiber optic cuts in the Sprint system that connects the airline's resevations and ticketing system to the SABRE system used by many airlines and travel agencies to track and issue tickets.

Sprint spokeswoman Crystal Davis in Reston, Va., said one problem occurred at a construction site along railroad tracks between Chicago and Milwaukee, and the other was somewhere between Portland and Seattle.

If there had been only one disruption, the computer system would've been able to reroute the traffic. She said the failure Monday was caused by the combination of the two cuts. It also affected some other Sprint customers in parts of Washington, Oregon and California.

At Sea-Tac International Airport, passengers reported they were being issued hand-written boarding passes.

Earlier, Alaska Airlines took to Twitter, saying, Our data connection partner, Sprint, is experiencing a network outage which is affecting our ability to check-in customers. A message posted at alaskaair.com said, The SABRE system went down at 7:40 a.m. and appears to be a data connection issue with Sprint.

Other airlines at Sea-Tac were not affected, according to a Port of Seattle spokesman.

One person trying to travel from Seatac Airport Tweeted, Alaska Air's computers are down at SEA. No one can get on planes. Looks like we'll be late...

A passenger trying to fly out of Portland Tweeted: #alaskaair down in #pdx too, longest line I've seen in awhile. :(. Everyone just standing, waiting.

Around 9 a.m., a passenger at Sea-Tac tweeted, Flight numbers being posted on white sheets of paper and hand written boarding passes.

Additional reporting by KING 5's Glenn Farley and the Associated Press.

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