What was found
EN ROUTE TO CID, THE AIRCRAFT WAS 30 MILES SOUTH OF RST THE MAIN AND EMERGENCY ACCUMULATOR PRESSURE DROPPED BELOW THE YELLOW. HYDRAULIC QTY NORMAL. HYD PUMP TURNED OFF PER THE QRC. CREW FOLLOWED PROCEDURES. BOLTS WERE BLOWN. MADE AN UNSCHEDULED LANDING IN RST. DECLARED AN EMERGENCY. AFTER LANDING, THE HYD PUMP WAS TURNED TO OVERRIDE ALL PRESSURES RETURNED TO NORMAL. AIRCRAFT WAS TAXIED TO THE RT GATE. REMOVED AND REPLACED LT AND RT SEPARATION BOLTS.