What was found
DURING MAINTENANCE CHECK, FOUND COCKPIT DOOR WOULD NOT OPEN FROM INSIDE OR OUTSIDE. REINSTALLED TUMBLER MECHANISM INSIDE DOOR HANDLE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING MAINTENANCE CHECK, FOUND COCKPIT DOOR WOULD NOT OPEN FROM INSIDE OR OUTSIDE. REINSTALLED TUMBLER MECHANISM INSIDE DOOR HANDLE.