As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NOSE STEERING FAILED AT START OF TAXI. AIRCRAFT MOVED 10 FEET, UNABLE TO RETAIN CONTROL THROUGH ALTERNATE MEANS. SHUT DOWN AIRCRAFT. TROUBLESHOT AIRCRAFT, DOWNLOAD FAULTS FROM STEERING COMPUTER. FOUND RELAY FAULT, ORDERED REPLACEMENT NOSE WHEEL STEERING COMPUTER. (K)