As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRST OFFICER`S OTBD DISPLAY SCREEN BLACKED OUT, HAS BLACK AND RED STRIPES. TO ALTERNATE DISPLAY CONTROL DISPLAY CAME BACK FOR A MINUTE THEN BLACK AGAIN. RT OTBD DISPLAY BLANK WITH MESSAGE 31-80162. REPLACED RT OTBD DISPLAY UNIT IAW MM. INSTALLATION TEST COMPLETED.