As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT DECK DOOR WILL NOT OPEN FROM THE FLIGHT ATTENDANT KEY PAD, LIGHT IN FLIGHT DECK WILL NOT SHOW UNLOCK WITH TOGGLE SWITCH UNLOCK. FLIGHT DECK DOOR MID STRIKE ELECTRICAL CONNECTOR PIN WAS FOUND LOOSE AND WAS RESECURED PER ESPM 20-44-00. A SATISFACTORY OPERATIONAL CHECK OF THE FLIGHT DECK DOOR LOCKING SYSTEM WAS ACCOMPLISHED PER AMM 52-51-00.