What was found
SLC - FLT 2808 - PHX-SLC - CREW DECLARED AN EMERGENCY DUE TO LOSS OF HYDRAULIC FLUID. 125 MILES FROM SLC THE HYDRAULIC FLUID QUANTITY DROPPED. AIRCRAFT LANDED WITHOUT INCIDENT. AFTER LANDING, THE INDICATOR CAME UP TO THE REFILL MARK ON GAUGE. CONTRACT MAINTENANCE AND FLIGHT CREW PERFORMED WALKAROUND AND WERE UNABLE TO LOCATE ANY SIGNS OF LEAK. MX ADDED SIX QUARTS TO SYSTEM. AIRCRAFT RELEASED FOR CONTINUATION TO MAINTENANCE BASE. (W)