What was found
EN ROUTE TO PIT, THE MAIN AND AUXILIARY BATTERY CAUTION LIGHTS ILLUMINATED. THE TEMPERATURE MONITOR WENT DEAD ASSOCIATED WITH THE CIRCUIT BREAKER POPPING. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT SYSTEM, FOUND THE TEMPERATURE MONITOR AT FAULT. THE MONITOR WAS REMOVED AND REPLACED IAW DHC PROCEDURES. TESTED OK. A/C RETURNED TO SERVICE. (M)