What was found
BATTERY CHARGER FAIL MSG ANNUNCIATED SHORTLY AFTER TAKEOFF IN ATL IT CLEARED IN FLIGHT DURING PRE FLIGHT FOR RETURN LEG IT RE OCCURED CB WAS RESET AT MTC DIRECTION THERE WAS NO CHANGE THEN SMOKE WAS SEEN COMING FROM E AND E COMPARTMENT. REMOVED AND REPLACED SHIPS BATT SET AND BATT CHARGER PER B717 AMM 24-34 AND 24-34 COMPLETED NO GO ODI 21-72 NO DUCT BURN OUT REQ. BATT AND CHARGING SYSTEM NORMAL AND OK FOR SERVICE CHARGER (7729918)