What was found
(CAN) SHORTLY AFTER TAKEOFF, THE PILOT OBSERVED AN LOW OIL PRESSURE INDICATION ON THE RT ENGINE AND HE ELECTED TO SHUT IT DOWN BEFORE RETURNING TO THE DEPARTURE POINT WHERE AN UNEVENTFUL SINGLE ENGINE LANDING WAS MADE. POST FLIGHT INSPECTION FOUND AN OIL LEAK WAS FOUND AT FLANGE F BETWEEN THE INTERCOMPRESSOR CASE AND GAS GENERATOR CASE AT THE 7 AND 11 O`CLOCK POSITIONS. TROUBLESHOOTING IS IN PROGRESS.