As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN ENTRANCE DOOR HANDLE IS VERY STIFF, IT IS HARD TO LATCH AND UNLATCH. INSPECTED DOOR LATCH MECHANISM AND DOOR PINS. AND FOUND DARK MATERIAL BUILDUP ON THE DOOR PINS AND PIN SOCKETS. CLEANED AND LUBED DOOR PINS AND SOCKETS; THEN ADJUSTED THE SOCKETS, TO ENSURE SMOOTH ACTION ALONG MATING SURFACES · AND PERFORMED SATISFACTORY OPERATIONAL CHECK ALL LAW SRM·52-10-01