As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: GATE AGENT REPORTS L1 DOOR DIFFICULT TO OPEN/MOVE. MAINTENANCE SERVICED L1 DOOR DAMPER AND ACCOMPLISHED LUBRICATION OF HINGE ARMS SUPPORT FITTINGS, DOOR OPERATES NORMAL NO DIFFICULTY NOTED OPERATING DOOR, OPS CHK GOOD IAW AMM 52-10-00 AND 12-22-52-640-016-A.