As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ANTI-ICE ENG R EICAS MSG. REPLACED RT ENG ANTI-ICE VALVE. RAN ENG, NO HELP. NEEDS MORE TIME FOR T/S. REMOVED AND SAFETY CONTROLLER ELECTRICAL PLUG AND VALVE LOCKED IN OPEN. CONFIRMED BAD CONTROLLER BY SWAPPING WITH LT ENGINE. REPLACED RT ENGINE ANTI ICE VALVE CONTROLLER AND ACCOMPLISHED SYSTEM TEST DURING ENGINE RUN, OPS AND INDICATIONS NORMAL.