What was found
MAIN DOOR WOULD NOT OPEN. AFTER DEPRESSING THE RED BUTTON IN THE HANDLE NO AUDIABLE DISENGAGE CLICK SOUND WAS HEARD. HANDLE WOULD NOT MOVE. AFTER SHUTTING THE PLANE COMPLETELY DOWN TO TO A DARK CABIN. THE DOOR WORKED AS NORMAL. "CORRECTIVE ACTION" REMOVED CABIN DOOR STEP'S VISUALLY INSPECTED CABIN DOOR WIRING HARNESS FOUND NO DEFECTS, VERIFIED NO POWER AT SOLENOID. VERFIED OPERATION OF SOLENOID ROTARY SWITCH. REINSTALLED CABIN DOOR STEPS REF CE680A M/M 52-10-50. REMOVED AND REPLACED PCB CARD CED MONITOR NC105 OPS CHECK GOOD.