As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 3177 RIGHT INTAKE HEAT MSTER CAUTION COME ON WITH THE RIGHT ENGINE ANTI-ICE SELECTED ON AFTER RESETTING THE SWITCH THE CAUTION LIGHT COMES BACK ON AFTER A FEW MINUTES. AIR RETURN TO MSP. MAINTENANCE REMOVED AND REPLACED RIGHT INTAKE HEAT DEICE CONTROL MODULE P/N 44730-501, S/N OFF L258945, S/N ON L248464. OPS CHECK GOOD.