What was found
3885 RT WING A-ICE CAUTION MSG USING STANDBY. EN ROUTE, THE FLIGHT EXPERIENCED A RIGHT WING ANTI ICE CAUTION MESSAGE. IN THE INTEREST OF SAFETY, TO AVOID ICING CONDITIONS, THE CREW AND DISPATCHER HAVE AGREED TO DIVERT TO DAY. NO EMERGENCY DECLARED AND THE FLIGHT LANDED IN DAY. WRITE UP WAS "RT WING A-ICE CAUTION MSG USING STANDBY." ***AIRCRAFT REMOVED FROM SERVICE*** R&R ANTI ICE PANEL IAW AMM 30-12-21 OPS CHECK GOOD IN BOTH STBY AND NORMAL MODE. REMOVED PLACARD REMOVED FROM MEL