What was found
EMERGENCY EXIT DOOR OPEN. ON PREFLIGHT, NOTICED THERE TO BE A GAP ON THE EMERGENCY EXIT DOOR AND NOT FLUSH WITH THE FUSELAGE. ABLE TO MOVE (ROCK) THE DOOR WHEN IT SHOULDN'T MOVE AT ALL. I ALSO WENT INSIDE OPENED (APPX 5) AND CLOSED THE DOOR TO RE-SEAT EMERGENCY DOOR UNABLE TO RESEAL THE DOOR. REMOVED AND REINSTALLED EMERGENCY DOOR MULTIPLE TIMES IAW AMM 52-20-00. VERIFIED PROPER ENGAGEMENT OF BOTTOM PINS IN DETENTS AND PERFORMED OPS CHECK OF EMERGENCY DOOR. NO DEFECTS NOTED.