What was found
HYD FLUID LOSS FROM LT SYS. QTY WENT DOWN TO APPROX .65 WITHIN FIRST 4 HRS OF FLIGHT. CREW SELECTED LT ENG AND ELECT HYD PUMPS TO OFF AS A PRECAUTION TO CONSERVE FLUID FOR DESCENT, HYD FLUID LOSS STOPPED WITH PUMPS TURNED OFF. NEVER HAD LOW PRESS OR OVHT INDICATIONS WHEN PUMPS WERE RUNNING. ON ARRIVAL, QTY IND SHOWN LT 0.8 0 THEN SERVICE TO 1.10. OPERATE ALL LT SYS WITH HYD PRESS. AILERON, ELEVATORS, RUDDER SPOILERS AND ENG RVS CKD WITH LT ENG EDP IAW JRH HYD QTY REMAIN SAME. NO HYD LEAK CONFIRM ON GROUND, L ENG STRUT INSIDE AND FUSELAGE IS DRY. REQUESTING VERIFICATION FLIGHT. SUCCESSFUL VERIFICATION FLIGHT.