What was found
ON TAKEOFF ROLL, THE NR 2 ENGINE OIL QUANTITY INDICATOR DROPPED TO ZERO. REJECTED TAKEOFF AND RETURNED TO THE GATE. DEFERRED THE NR 2 ENGINE OIL QUANTITY INDICATOR IAW MEL 79-1, CONTROL NR 0778B-10. SERVICED THE NR 2 ENGINE TO FULL AND INSTALLED PLACARDS ON AIRCRAFT AND LOG-BOOK. AIRCRAFT RETURNED TO SERVICE. REMOVED AND REPLACED THE NR 2 ENGINE OIL QUANTITY TRANSMITTER IAW AMM 79-31-11. OPS AND LEAK CHECK OK, PLACARDS REMOVED. AIRCRAFT RETURNED TO SERVICE.