What was found
FLT 6455 - IAD-PHL - DURING CLIMB, AIRCRAFT MADE AN UNSCHEDULED LANDING AT IAD DUE TO NR 1 ENGINE TORQUE EGT AND RPM FLUCTUATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND OPENED DMI 57154 MEL 76-2 ON TTL. DMI 57154 CLOSED ON 3-3-98 BUT COULD NOT DUPLICATE PROBLEM AND NO DEFECTS NOTED, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)