As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH ENGINE LOW OIL UPON ENGINE START AND PUSH.BACK LH 19 ON START DROPPED TO 18 THEN TO 13 AND STABLE AT 14. RH 21 THEN 17 ON IDLE, NO ISSUES. AC RETURNED TO GATE AND MTX GROUNDED AC MTX CHECKED OIL @ SIGHT GLASS, FULL. EICAS READING 19 LH + 21 RH. SERVICED LH ENG W 1QT OIL. EICAS READING 20 + 21. OIL STILL IN SIGHTGLASS. WORK IAW B767-2A.AND RETURNED AC TO SERVICE