What was found
FLL - FLT 1638 - AFTER TAKEOFF AT 800 FT, THE NR 1 ENGINE EXPERIENCED A TURBINE FAILURE. CREW SHUT DOWN THE NR 1 ENGINE IN FLIGHT. AN EMERGENCY WAS DECLARED AND THE FLIGHT RETURNED TO FIELD AT FLL WITHOUT FURTHER INCIDENT. TOTAL SINGLE ENGINE TIME WAS 17 MINUTES. MAINTENANCE REMOVED AND REPLACED THE NR 1 ENGINE ASSY. OPERATIONAL CHECK AND LEAK CHECK GOOD. (M)