What was found
CTS - FLT 938 - ON TAKEOFF ROLL, NR 3 OIL QTY INDICATOR WENT TO .5 GALLON, ON TAXI BACK TO GATE, INDICATOR RETURNED TO NORMAL. REJECTED TAKEOFF AT 90 KNOTS APPLIED MEL 79-01. TANK VISUAL CHECK WAS FULL ON ARRIVAL OF FLT 937 AND AGAIN ON RETURN TO GATE. REMOVED AND REPLACED NR 3 ENGINE OIL QTY TRANSMITTER PER MM 79-31-0. (M)