As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN GEAR STEERING INDICATION RECEIVED. MAIN GEAR STEERING POWER CONTROL ACTUATOR LT FAULT. MAIN GEAR STEERING FAULT DUE TO THE LT MAIN GEAR STEERING POWER CONTROL ACTUATOR (PCA) SHOWING NOT LOCKED AT BEGINNING OF TAKE-OFF ROLL. FURTHER TROUBLESHOOTING DISCOVERED A BAD WIRE HARNESS BETWEEN THE PCA AND THE LOWER JUNCTION BOX. THE WIRE HARNESS WAS REPLACED. AIRCRAFT HAS FLOWN SEVERAL FLIGHTS WITH NO FURTHER INCIDENTS.