What was found
AFTER TAKEOFF FROM MEM, THE FLIGHT CREW NOTICED NR 1 ENGINE INDICATIONS STARTED FLUCTUATING. AFTER ENGINE IDLE DOWN NO CHANGE IN ENGINE INDICATION, THE FLIGHT CREW FOLLOWED COMPANY PROCEDURES AND SHUTDOWN THE NR 1 ENGINE. THE FLIGHT CONTINUED TO DFW FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE AIRCRAFT AND PERFORMED VISUAL AND MAINTENANCE CHECKS IN ACCORDANCE WITH DOUGLAS MAINTENANCE MANUAL AND THE GENERAL ELECTRIC CFM56 MAINTENANCE MANUAL WITH NO FAULTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.