What was found
ON LANDING, NOSE WHEEL STEERING FAILED TO RESPOND TO INPUT AND ACFT VEERED TO LEFT. APPLICATION OF NORMAL BRAKE ON PILOT AND CO-PILOT SIDE FAILED TO SLOW AND EMERGENCY BRAKES REQUIRED TO STOP. ONCE TAXI ATTEMPT WAS RESUMED, NOSE WHEEL STEERING AND NORMAL BRAKING RESUMED. TROUBLESHOOTING FOUND AFT HYDRAULIC ACCUMULATOR LOW. SERVICED ACCUMULATOR IAW JIC 12-14-29 SRU 10000. INSPECTED BRAKES AND NOSE LANDING GEAR FOR LEAKS, NO LEAKS NOTED. TAXIED ACFT AND PERFORMED OPS TEST OF NORMAL BRAKING IAW JIC 32-42-00 OPT 10000. CHECKED NOSE WHEEL STEERING WHILE TAXIING THE SYSTEM CHECKED NORMAL.