As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT DECK DOOR VERY DIFFICULT TO OPEN AND CLOSE FROM FLIGHT DECK SIDE IN CRUISE FLIGHT. MAINTENACE FOUND DOOR FRAME LOOSE AND TIGHTENED SCREWS IN DOOR FRAME PER AMM 52-51-00. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ISSUES NOTED.