As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT, RH ENG PRIMARY HYD PUMP LIGHT ILLUMINATED. AIRCRAFT RETURNED TO BLOCKS. (BTB). MAINTENANCE REPLACED RH ENG EDP IAW 29-11-05. C/W LEAK AND OPS CHECK OF RH ENG EDP. OPS CHECK GOOD AND NO LEAKS NOTED IAW B767 AMM 29-11-00 AND 29-11-05. C/W FLUSH OF THE RH HYD SYSTEM IAW B767 AMM 29-11-00. AIRCRAFT RETURNED TO SERVICE.