As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FORWARD CABIN L1 LAVATORY DOOR VERY DIFFICULT TO OPEN AND CLOSE IN FLIGHT. IT'S BETTER ON THE GROUND. DOORS APPEARS TO BE DRAGGING ON CONTACTING THE FLOOR THRESHOLD. MAINTENANCE ADJUSTED THE LAVATORY DOOR AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.