Flight Instructor and student reported they feathered one engine due to loss of oil pressure and diverted to land at a nearby airport.
Synopsis
Flight Instructor and student reported they feathered one engine due to loss of oil pressure and diverted to land at a nearby airport.
Narrative
During the evening of Date; I was conducting a flight from ZZZ1 to ZZZ2 in Aircraft X. After departing ZZZ1 at around XA:00 local time; all instruments and indicators were looking in good condition. After around one hour of flight; I noticed a decrease in the oil pressure gauge of the right engine. After noticing the decrease of oil pressure; the RPM dropped from 2400 (cruise setting). I started troubleshooting as described on the checklist; but the oil kept decreasing; as well as the RPM. At the moment I decided to start the feather procedure to avoid any further damage on the right engine. While starting the feather procedure we were at the safe altitude of 3500 ft. AGL and ZZZ2 was the closest airport to land. I divert from the planned route and proceed to ZZZ. I called ZZZ Tower around 15 miles west and proceeded directly to the runway. Landing was smooth and no damage to the airplane or person on board was made. After the landing I was able to taxi the aircraft to the closest FBO ramp and parked the plane with no further complication until complete shutdown.
Second reporter narrative
During cruise at 3500 inbound to ZZZ2 south of [the] lake a low oil pressure on right engine oil pressure indicator accompanied by some vibration. We monitor but minutes after Right Engine was shut down as a precautionary measure. Instructor MEI was Pilot Flying and I was PM (Pilot Monitoring). We deviated to the closest suitable airfield in this case ZZZ airport. Current flight conditions were reported to ZZZ Tower and priority was given to land at Runway XX. Aircraft X executed a normal one engine landing and taxi to park by the Instructor.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.