What was found
AFTER ARRIVING AT THE GATE ON FLIGHT 7702 FROM IAH TO IAD, THE FLIGHT ATTENDANT COULD NOT OPEN THE EXIT DOOR. THE GIRT BAR WOULD NOT FULLY DISENGAGE FROM THE ACTIVATED POSITION. WHEN THE DOOR WAS OPENED FROM THE OUTSIDE, THE SLIDE DID NOT DISCONNECT FROM THE AIRCRAFT AND THE SLIDE PULLED OUT OF THE CONTAINER AT THE BASE OF THE DOOR. THE DOOR SLIDE ASSEMBLY DEPLOYED UPON ARRIVAL AT THE GATE BY THE MECHANICS. MAINTENANCE PERFORMED AND INSPECTION OF THE FORWARD PASSENGER DOOR EMERGENCY MECHANISM IAW EMB 170 AMM 52-11-40. REMOVED AND REPLACED EMERGENCY SLIDE ON FORWARD PASSENGER DOOR IAW WMB 170 AMM 52-11-40.