As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BLG STEERING MALFUNCTION ON PUSHBACK FROM GATE. RT SIDE TURNS, LT SIDE FAILS TO MOVE. CHECKED HISTORY, NON FDE. FOUND MESSAGE 'LEFT BODY GEAR LEFT ACTUATOR LOCK SWITCHES DISAGREE'. REPLACED LT BLG, LT ACTUATOR IAW AMM. GROUND TEST & LEAK CHECK PASSED.