What was found
MAIN CABIN DOOR SLOW TO OPEN. FROM OUTSIDE PULL DOOR HANDLE AND THE DOOR DID NOT OPEN IMMEDIATELY. IT CRACKED OPEN THEN HAD TO PULL WITH HAND AND THE DOOR CAME DOWN. AFTER OPERATING THE MAIN CABIN DOOR, FOUND THAT WHEN WE OPEN THE MAIN CABIN DOOR SEAL IS CAUSING TOO MUCH FRICTION BETWEEN THE DOOR CUTOUT AND THE DOOR. CLEANED RESIDUE ON MAIN CABIN DOOR SEAL AND AROUND THE MAIN CABIN DOOR. PERFORMED OPERERATIONAL CHECK OF THE MAIN CABIN DOOR, FULL Y OPEN AND FULLY CLOSED SEVERAL TIMES. OPS CHECK GOOD AT THIS TIME. REF AMM 52-10-04