As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L1 DOOR WILL NOT CLOSE CORRECTLY. L1 DOOR APPEARS TO BE OUT OF RIG. WHEN LWR ROLLERS ENGAGE DOORFRAME TRACKS BOTH UPPER ROLLERS WILL NOT ENGAGE THE RACEWAYS IN THE TRACKS. THE UPPER ROLLERS ARE GRINDING AND GOUGING THE CASTINGS TO THE POINT WHERE THE DOOR WILL NOT CLOSE WITHOUT SUBSTANTIAL EFFORT TO OVERCOME THIS BINDING CONDITION. REPLACED COCKING ROLLER AND CONTROL CAM, CHECKED DOOR OPERATION IAW AMM 52-11-13-2 AND 52-11-00-5. CHECKED GOOD.