What was found
DURING THE INITIAL DESCENT FOR LANDING, THE CREW REPORTED THAT THE STAB/WING HEAT CIRCUIT BREAKER TRIPPED. FOLLOWING THE FLIGHT AIRCRAFT MAINTENANCE CREW TROUBLESHOT AND FOUND WIRE PAR204SA WAS CHAFING EXTERNALLY ON THE P40 RELAY BOX. THE WIRE WAS REPAIRED WITH AN ENVIRONMENTAL SPLICE. THE WIRE AND WIRE BUNDLE WAS RE-POSITIONED AND PROTECTED TO PREVENT FURTHER DAMAGE. OPERATIONAL CHECKS WERE SATISFACTORY. THE AIRCRAFT WAS RETURNED TO SERVICE.