What was found
IFSD DURING CRUISE, NP SPEED INCREASED SUDDENLY, WITH CORRESPONDING TORQUE DECREASE. ACFT LANDED IMMEDIATELY, UNEVENTFUL LANDING. SOME CONNECTORS WERE FOUND LOOSE AND FULL OF OIL. ON A SUBSEQUENT FLIGHT, THE SAME HAPPENED (HIGH NP, LOW TQ) BUT THIS TIME THE CREW ELECTED TO SHUTDOWN THE ENGINE AND CONTINUED TO THE PLANNED DESTINATION. SHORTLY BEFORE LANDING, A FIRE WARNING ANNUNCIATED, ACFT LANDED UNEVENTFULLY. PRELIMINARY INSP REVEALED NO EVIDENCE OF FIRE.