As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HARD TO LATCH CLOSE/OPEN. STICKS IN THE CLOSED POSITION AFTER UNLOCKING REQUIRING MOTIVATION TO OPEN. DURING VISUAL INSPECTION OF DOOR, FOUND MAIN DOOR PINS DIRTY. C/W CABIN DOOR: LUBRICATION. PERFORMED SEVERAL OPERATIONAL CHECKS. NO FAULTS ,NOTED. IAW CE??700 AMM 12-20-15.