As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: INFLIGHT COULD NOT OPEN FLIGHT DECK DOOR. FLIGHT CREW FOUND THE BOTTOM LATCH WOULD NOT RETRACT WHEN HANDLE WAS TURNED. MAINTENANCE REPLACED HARDWARE ON CENTER TO LOWER LATCH AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 52-51-11.