What was found
A/SKID INBD CAUTION DISPLAYED ON DESCENT APPROX 50MILES OUT FROM DESTINATION. FLAPS WERE 0° AND LANDING GEAR UP. COMPLIED WITH QRH PROCEDURES FOR LANDING. (FLT 3249 FILED CLOSED)INTEGRATED MDC FOUND B1 007489. T/S PER FIM 32-45-13. SUSPECT PARKING BRAKE SHUT OFF VALVE TO BE DEFECTIVE. REMOVED AND REPLACED PARKING BRAKE SHUTOFF VALVE IN REF. TO AMM 32-45-13. BLEED HYDRAULIC SYSTEM #3 IN REF. TO AMM 29-10-00. BLEED BRAKES IN REF. TO AMM 32-43-00. PERFORMED OPERATIONAL TEST OF THE PARKING BRAKE SHUT OFF VALVE IN REF. TO AMM 32-45-13. MESSAGE CLEARED NO CURRENT FAULTS AT THIS TIME. LEAK CHECKS GOOD AT THIS TIME. A/C OK FOR SERVICE.