As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR DIFFICULT TO OPEN AFTER HANDLE IS LIFTED UP. TAKES MUCH EFFORT TO PUSH DOOR OPEN. ALSO HANDLE MUST BE RECYCLED. REMOVED SAND CONTAMINATED GREASE FROM MATING & SLIDING INTERFACE POINTS BETWEEN MCD & FUSELAGE. SERVICED WITH CLEAN GREASE. OPERATIONS CHECKED GOOD IAW AMM 52-10-00. OK FOR SERVICE.