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 WILL NOT OPEN WHEN THE HANDLE IS TURNED. YOU MUST UNLOCK IT WITH THE SWITCH IN ORDER TO OPEN THE DOOR. MAINTENANCE ADJUSTED THE FLIGHT DECK DOOR UPPER LATCH AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.