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 MECHANICALLY MUST USE THE FLIGHT DECK DOOR UNLOCK SWITCH TO GET THE DOOR TO OPEN. REMOVED AND REPLACED FLIGHT DECK DOOR LATCH ASSEMBLY PER AMM 52-51-21 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.