What was found
THE FLIGHT CREW REPORTED THAT DURING GROUND OPERATIONS PREPPING FOR FLIGHT A BAGGAGE SMOKE WARNING ANNUNCIATOR AND SMOKE FROM THE BATTERY COMPARTMENT. IT WAS DETERMINED THAT THE COMPRESSOR MOTOR COOLING FAN BROKE DURING OPERATIONS THEN CAUSING THE COMPRESSOR MOTOR TO OVERHEAT AND SEIZE-UP. THIS CAUSED THE COOLING FAN SHROUD TO MELT. THE MAINTENANCE BAY WAS CHECKED FOR ANY DAMAGE, NONE FOUND, AND THE SYSTEM WAS PLACED ON MEL TO ALLOW FOR CONTINUED OPERATIONS. DURING THE MAINTENANCE EVENT THE MAINTENANCE TECH CONFIRMED THE MOTOR WAS SEIZED. THE DAMAGED MOTOR WAS REMOVED AND REPLACED WITH AN OVERHAULED UNIT. OPERATIONS WERE SATISFACTORY. TOTAL AIR CONDITIONING TIME ON MOTOR LESS THEN 200 HRS AND 1 YEAR IN SERVICE