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 FOUND LOCKED ON PREFLIGHT. WOULD NOT OPEN WITH MULTIPLE CODE ENTRIES WITH GREEN LIGHT. WHEN PULLED HARD WHILE HOLDING FRAME, DOOR POPPED OPEN ON YELLOW LIGHT. REMOVED AND REPLACED ELECTRIC STRIKE ASSEMBLY. PER AMM 52-51-03. OPERATIONAL CHECK GOOD.