What was found
MED LATCHING HANDLE STICKS IN THE OPEN/UNLATCHED POSITION AND IS DIFFICULT TO MOVE TO THE DOWN AND LATCHED POSITION. CYCLED HANDLE WITH THE DOOR FULLY OPEN AND THE LATCHING MECHANISM STICKS THEN AS WELL, SO IT DOESN'T APPEAR TO BE A MISALIGNMENT OF THE PINS WITH THE DOOR FRAME. CORRECTIVE ACTION: COMPLETED CABIN DOOR LATCH/LOCK SYSTEM FUNCTIONAL TEST AND MAIN CABIN DOOR HEALTH CHECK WITH NO DEFECTS NOTED. CHECKLIST E-MAILED TO MCC AND TEAM 680. IAW AMM 52-10-04