As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R ENGINE BLEED OFF EICAS MESSAGE DURING TAXI. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE REMOVED PRSOV IAW AMM 36-11-09. INSTALLED NEW SERVICEABLE R/H PRSOV ON #2 ENGINE IAW B767 AMM 36-11-09 A/C REMAINS NO ETOPS OPS CHK GOOD. AIRCRAFT RETURNED TO SERVICE.