As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI WHILE STARTING RH ENGINE ,OIL DROPPED TO 11QTS AFTER START, A/C RETURNED TO GATE (BTB) AND MTX GROUNDED A/C .CONFIRMED OIL LEVEL AND MTX DEFERRED RH OIL QTY INDICATION IAW MEL ABX-79-31-1-1 PLACARD INSTALLED AND RETURNED A/C TO SERVICE .AC REMAINS ETOPS 180.