As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RH HYD SYSTEM DUMPED FLUID AFTER BLOCK OUT. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE FOUND RIGHT WING INBOARD ANTISKID VALVE LEAKING. REMOVED AND REPLACED RIGHT WING/GEAR INBOARD ANTISKID VALVE PER B767 AMM 32-42-03 LEAK & OPS CHECK GOOD. AICRAFT RETURNED TO SERVICE.