As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON A PART 91 TRIP SCHEDULED FROM KAUS TO KVNY CREW NOTICED THE RH ENG OIL PRESS FLUCTUATING BETWEEN 31 AND 39 PSI AT CRUISE FL340, AS FLIGHT PROGRESSED THE OIL PRESS CONTINUED TO DROP, WHEN PRESS READING DROPPED TO 25 PSI THE CAS MSG R LOW OIL PRESS ILLUMINATED. CREW RAN EMERGENCY CHECKLIST, SHUT DOWN AFFECTED ENGINE, ALERTED ATC, DECLARED EMERGENCY AND ASKED TO DIVERT TO KPHX. CREW PERFORMED UNEVENTFUL SINGLE ENGINE LANDING IN KPHX.