As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RIGHT ENGINE OIL PRESSURE CAS MESSAGE, AURAL WARNING AND ENGINE OIL PRESSURE AT 20 PSI EN ROUTE FROM DCA TO TYS AT FL300. CREW SHUT DOWN RIGHT ENGINE PER QRH, DIVERTED TO GSO AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED, REMOVED AND REPLACED RIGHT ENGINE DUE TO METAL CONTAMINATION AND PERFORMED CHECKS USING AIRCRAFT MAINTENANCE MANUALS. AIRCRAFT WAS RELEASED FOR SERVICE.