As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENG START RIGHT HYD QTY DROPPED TO 0.73 WITH RF.AC THEN RETURNED TO THE GATE (BTB) AND MAINTENANCE GROUNDED AC . MTX THEN SERVICED R HYD SYS TO 1.00 IAW AMM 12-12-01. PERFORMED ENGINE RUN ON RIGHT ENGINE RUN ON RIGHT ENGINE IAW AMM 71-00-00. OPS CHECK GOOD NO LEAKS DETECTED. A/C REMAINS NO ETOPS.AND RETURNED AC TO SERVICE .