What was found
(CAN) TRAINING CAPTAIN CARRYING OUT EVACUATION TRAINING WAS UNABLE TO OPEN FWD EMERGENCY EXIT. ON INVESTIGATION BY LINE ENGINEERS, THE DOOR HANDLE WOULD NOT FULLY EXTEND. AFTER DISASSEMBLY OF TRIM AROUND DOOR AND DOOR PANEL. THE DOOR OPENING MECHANISM BEARINGS WERE FOUND TO BE CORRODED AND SEIZED. THE DOOR WAS ALSO FOUND TO HAVE WATER COLLECTING AT THE BOTTOM AND ALL INSULATION WITHIN THE DOOR WAS FOUND WET. BEARINGS WERE REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.