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 STICKING AT ALTITUDE. APPEARS TO BE THE DOOR EXPANDED AND STICKING TO THE FRAME. APPEARS TO HAVE NOTHING TO DO WITH THE LATCHES. MAINTENANCE CLEANED AND LUBRICATED FLIGHT DECK DOOR JAM. A SATISFACTOPRY OPERATIONAL CHECK WASA ACCOMPLISHED WITH NO ISSUES NOTED.