As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT ENGINE ANTI-ICE EICAS MESSAGE IN FLIGHT WITH ENGINE ANTI-ICE ON. RT ENGINE ANTI ICE VALVE LIGHT WAS ON FOUND PRSOV NOT SUPPLYING AIR TO ANTI-ICE VALVE. RESEATED CONNECTOR ON PRSOV. OPS CHECKED RT ENGINE ANTI-ICE GOOD IAW AMM 30-21-00, OPS CHECKED PRSOV IAW AMM 36-11-09.