What was found
(CAN) LOW OIL PRESSURE/IFSD DURING FLIGHT, THE CREW GOT A LOW OIL PRESSURE WARNING. THEY ELECTED TO SHUT THE ENGINE DOWN BEFORE MAKING AN UNEVENTFUL SINGLE ENGINE LANDING AT DESTINATION. POST FLIGHT INSPECTION FOUND AN OIL LEAK AT ONE OF THE REDUCTION GEARBOX OIL PLUGS. THE PLUG WILL BE REPAIRED BEFORE THE A/C IS RETURNED TO SERVICE.