As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: WHEEL N/S STEERING FAULT IN FLIGHT AFTER STARTED DESCENT FROM FL370. DIVERTED TO POP. EMERGENCY WAS DECLARED, AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE WHEEL STEERING FEED BACK SENSOR BOX 3GC IAW AMM 32-51-19-400-002.