June 11, 2011 9:32 AM

Power outage grounds US Airways' computer ops

US Airways planes sit on the ground at Phoenix Sky Harbor International Airport in this file photo.

US Airways planes sit on the ground at Phoenix Sky Harbor International Airport in this file photo. (AP Photo)

(CBS/AP) 

Service is back to normal - or at least close to it - on US Airways this morning after many of its flights were grounded or delayed.

A power outage in Phoenix shut down the airline's computer system, causing a cascade of problems nationwide.

Passengers couldn't make reservations or check in online.

The cause of the outage has not been determined.

Officials at the Tempe-based carrier couldn't immediately say how many flights or passengers were affected.

Airline spokeswoman Tina Swail says some computer systems were back online by Friday evening and the carrier was "working to restore operational order."

In a statement the airline strongly encouraged customers to check their flight's status online before arriving at the airport or by calling US Airways Reservations at (800) 428-4322.

© 2011 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.
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by DF68 June 11, 2011 9:04 PM EDT
Makes me wonder what kind of redundant back up power systems (UPS) they have for their network.
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by eddom9492 June 11, 2011 9:55 AM EDT
What if the person fixing it was someone they had 'let go' of? That's why you have to retain your staff!
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