Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor; Flight Crew Multiengine; Flight Crew Instrument
Flight Crew Last 90 Days 125; Flight Crew Total 3100; Flight Crew Type 600
Time Pressure; Workload; Troubleshooting
Aircraft Equipment Problem Critical; Deviation - Track / Heading All Types
Flight Crew Diverted; Flight Crew Inflight Shutdown
Aircraft
In cruise flight with about an hour and fifteen minutes to go we got a Chip Detect R CAS MSG quickly followed by an Oil Filter Bypass R CAS MSG. We ran the appropriate checklists and they drove us to continue on to ZZZ1 as it said 'land as soon as practical' and that it's acceptable to operate with the oil filter bypass for up to 4 hrs. We were also getting intermittent DAU2 miscompare CAS messages. Approximately 30 minutes later the Master Warning went off and we got the Oil Pressure Low R CAS MSG which we confirmed on our oil pressure readout as it fell into the red. We ran the checklist and performed a precautionary shutdown of the right engine. We were at 41;000 feet and it was obvious the airplane wasn't going to hold altitude so we requested 31;000 feet so that we could get down and get the APU started which we did. In the descent we could see lights of ZZZ ahead and to our left. We knew there were emergency services there and a long runway so we requested to divert and [notified ATC] for priority. I was hand flying and running the radios while [First Officer] did a great job of running our checklists and setting me up with an extended centerline. ATC vectored us onto about a 5 mile final but the lights of the airport were very faint and by the time we picked it out I realized I was about 400-500 feet high so we made a gentle 360 to lose some altitude and get on glide path. After that the approach and landing were very straightforward.
A Cessna Citation X captain reported an oil system anomaly which led to an engine shutdown and a diversion to a nearby suitable airport.