What was found
CLIMBING THROUGH 9,000 FT., THE RIGHT WING OVERHEAT AMBER ANNUNCIATOR ILLUMINATED. CREW FOLLOWED CHECKLIST. RIGHT ENGINE POWER LEVERS REDUCED TO IDLE AND RIGHT WING OVERHEAT ANNUNCIATOR EXTINGUISHED. EMERGENCY WAS DECLARED AND AIRCRAFT DIVERTED TO KMCO. WITH THE RIGHT ENGINE POWER LEVER AT IDLE, THE CREW FOLLOWED THE CHECKLIST FOR SINGLE ENGINE LANDING. LANDING INTO KSSI WAS UNEVENTFUL. MAINTENANCE REPLACED THE RIGHT WING ANTI-ICE PRSOV, AND SWAPPED THE LEFT AND RIGHT WING ANTI-ICE PCB'S. GROUND CHECKS PERFORMED WITH NO DEFECTS NOTED. A SUCCESSFUL OPERATIONAL CHECK FLIGHT WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.