What was found
ON FLIGHT 2975 THE CREW REPORTED THAT WHILE APPROACHING DFW THE CABIN ALTITUDE DISPLAY WENT AMBER ON EICAS. THE CREW PERFORMED THE AOM VOL 1 CHECKLIST. THE CREW DECLARED AN EMERGENCY AND COMPLETED THE PRESSURIZATION AUTOMATIC SYSTEM FAILURE EMERGENCY CHECKLIST. THE AIRCRAFT HAD A NORMAL LANDING WITHOUT INCIDENT. THE AIRCRAFT WAS REMOVED FROM SERVICE. PERFORMED FUNCTIONAL TEST OF PRESSURIZATION CONTROL SYSTEM IN AUTO MODE AND OPS CHECK MANUAL MODE IAW EMB145 AMM 21-31-00. PERFORMED CABIN LEAKAGE TEST IAW EMB145 AMM 21-31-00. THE OPERATIONAL CHECK WAS GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.