What was found
AIRCRAFT 801 ON FLIGHT 5024 FROM CLT TO PGV. DURING THE TAKEOFF ROLL THE NUMBER 1 HYDRAULIC ISOLATION VALVE WARNING LIGHT, INBOARD SPOILER WARNING LIGHT, AND FLAP POWER WARNING LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT WAS TOWED TO THE GATE DUE THE COCKPIT PARKING BRAKE PRESSURE INDICATOR WAS DEFERRED. MAINTENANCE FOUND THE NUMBER 1 HYDRAULIC RESERVOIR LOW. THE RESERVOIR WAS SERVICED AND A LEAK CHECK PERFORMED. NO LEAKS FOUND. OPS CHECK WAS GOOD. AIRCRARFT RETURNED TO SERVICE.