What was found
MAIN DOOR: AFTER POST-FLIGHT OF AIRCRAFT, THE MAIN CABIN DOOR DOES NOT CLOSE FROM EITHER INSIDE OR OUTSIDE OF AIRCRAFT. DOOR WAS THEN MANUALLY DISENGAGED FROM THE MOTOR AND THEN MANUALLY CLOSED AND LATCHED. CORRECTIVE ACTION: RESET DOOR LIFT MOTOR BECAUSE MANUAL RELEASE WAS PULLED, MCD DOOR WAS OUT OF SEQUENCE, RESET SEQUENCE,PERFORMED MCD OP CHECKS SEVERAL TIMES, OP CHECKS GOOD @ THIS TIME.REF CE 680A MM 52-15-05 & CE 680A MM 52-10-04.