As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: NOSE WHEEL STEERING FAULT ON DESCENT INTO DFW / COMPLIED WITH QRH PROCEDURES NORMAL LANDING. NO NOSE WHEEL STEERING ON GROUND. REPLACED BRAKE STEERING CONTROL UNIT #1 (BSCU) AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 32-42-34.