What was found
FLT 1719 FROM KMCO TO KFLL. ON TAKEOFF DURING POWER UP, NR 3 ENGINE NOT PRODUCING T/O THRUST AT T/O EPR SETTING. REJECTED T/O. AIRCRAFT RETURNED TO GAT WITHOUT FURTHER INCIDENT. GROUND RUN ENGINE AT T/O POWER. NOTED ALL OTHER ENGINE PARAMETERS WERE NORMAL. PLACED NR 3 EPR INDICATOR ON MEL 77-1. AIRCRAFT RETURNED TO SERVICE. AFTER NEXT FLIGHT, FOUND OBSTRUCTION IN NR 3 ENGINE PT2 LINE. REMOVED OBSTRUCTION. EPR INDICATIONS WERE NORMAL. MEL 77-1 CLEARED AND AIRCRAFT RETURNED TO SERVICE.