What was found
ACFT IN CRUISE CAS SYS PRODUCED "WOW FAIL" CAUTION AND "A PROX SYS FAULT" ADVISORY. ACFT CONTINUED TO DESTINATION. DURING THE APPROACH AT LANDING GEAR DEPLOYMENT, ALL LANDING GEAR INDICATED DOWN AND LOCKED. CREW CHECKED QRH AND WAS NOT SURE AS TO THE AVAILABILITY OF NOSE WHEEL STEERING AFTER LANDING. CREW ADVISED ATC AND WAS DIRECTED TO LAND ON ANOTHER RUNWAY. THE ACFT LANDED WITHOUT INCIDENT AND ONCE SAFELY ON THE GROUND THE ACFT STEERING WAS VERIFIED AS OPERATIONAL AND THE ACFT TAXIED TO THE RAMP.