(Duplicate Squawk Submitted)
Short hop. AAL 1491 DCA-IAD, MD80, pressure indicator, no problems.
http://wtop.com/109/3265370/Flight-out-of-National-airport-diverted-to-Dulles
An Airline spokesman says a pressure indicator warning went on and the pilot decided to make the unscheduled landing. But the cabin never lost pressure.
There were 125 passengers and five on board the McDonnel Douglas Super 80.
http://flightaware.com/live/flight/AAL1491/history/20130327/1650Z/KDCA/KIAD