What was found
INSPECTION TYPE:PFLT DURING INITIAL ROTATION FOR T/O SMOKE (LITE SMOKE) ENTERED COCKPIT AND SPREAD INTO CABIN. PUT ON OXY MASKS, INCLUDING 1 ACM FOLLOWED SMOKE ELIMINATION CHECK LIST. SMOKE CLEARED IN SHORT TIME. ODOR, BUT NOT OF RUBBER OR ELEC WIRING. *S/D* T/S REVEALED NR 3 ENGINE HAD HIGH O2 CONSUMPTION. FOUND NR 3 ENGINE EVC OFF SCHEDULE AT START, AS CAUSE OF O2 LOSS. PERFORMED ENGINE/EVC TRIM AS PRESCRIBED BY AMM 71-00-00. FURHTER O2 LOSS NOTED ON ENGINE RUN.