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    American Airlines Grounds All Flights

    MIAMI, FL - FEBRUARY 13:  American Airlines planes are seen on the tarmac at the Miami International Airport on February 12, 2013 in Miami, Florida. Reports indicate that a deal between American Airlines and US Airways to merge is set to be announced as early as tomorrow. If the deal goes through it would create the world's biggest airline.  (Photo by Joe Raedle/Getty Images)

    Joe Raedle / Getty Images

    American Airlines grounded all its flights Tuesday afternoon after its reservation system went offline. The outages have caused numerous delays, and will continue to do so until the ground delay is lifted at 6 p.m. EST. As of midday, seven flights were officially canceled, while at least 50 more were delayed. Some passengers are reporting on Twitter that they’re stuck on planes, while other customers are venting about being unable to make reservations.

    Read it at NBC News