As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CVG - FLT 4087 - WHEN GEAR WAS EXTENDED DURING THE APPROACH INTO CVG, CREW RECEIVED A NOSE WHEEL STEERING FAIL. CREW PERFORMED A GO AROUND AND LANDED SAFELY. MAINTENANCE WENT TO CVG AND REPLACED THE NOSE WHEEL STEERING HYDRAULIC UNIT IAW DORNIER MAINTENANCE WITH 32-51-07. OPERATIONAL CHECK WAS GOOD AIRCRAFT DEPARTED WITHOUT FURTHER INCIDENT. (M)