As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD EQUIPMENT SUPPLY VALVES DO NOT AGREE, EICAS MSG FWD EQUIPMENT VALVE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED AND REPLACED AIR SUPPLY MODULE ASSY. IAW B767 AMM 36-23-01. OPS CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.