As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED RECIEVEING AN ECAM NOSE WHEEL STEERING FAULT MESSAGE DURING DESCENT AND DECLARED AN EMERGENCY. THE AIRCRAFT LANED AT LAX SAFELY, TAXIED OFF THE RUNWAY UNDER IT'S OWN POWER AND THEN WAS TOWED TO THE GATE. AIRCRAFT GROUNDED. MAINTENANCE REPLACED THE NOSE WHEEL STEERING CONTROL SERVO PER AMM 32-51-51. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.