What was found
DURING CRUISE, AT APPROX 36,000 FT, THE CREW RECEIVED A LT PACK HIGH TEMPERATURE MESSAGE. CREW COMPLIED WITH QRH TO TURN OFF PACK. ONCE PACK WAS TURNED OFF, A LT HYDRAULIC LOW PRESSURE 1 APPEARED FOLLOWED BY A LOUD NOISE AND HYDRAULIC QUANTITY FLUCTUATION. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT DIVERTED. EMERGENCY VEHICLES WERE DISPATCHED WITH THE AIRCRAFT LANDING SAFELY. MAINT REMOVED AND REPLACED THE NR 1 EDP AND PRESSURE LINE. OPS CHECK GOOD. AC OK FOR SERVICE. (K)