What was found
DURING CRUISE, RIGHT ENGINE ANTI-ICE INTAKE CAUTION LIGHT ILLUMINATED, CYCLED ON AND OFF APPROXIMATLY EVERY 30 SECONDS. CREW RAN QRH NO CHANGE, DE-ICE CHECKS WERE NORMAL. AIRCRAFT RETURNED TO MSP. MAINTENANCE REPLACED RIGHT DE-ICE MODULE IAW SF3 MM 30-20, OPS CHECK GOOD.