As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT THEY SHUT DOWN THE RIGHT ENGINE INFLIGHT AND DECLARED EMERGENCY. ABOUT 15 MILES OUT OF MSP, CREW FELT A VIBRATION. WHILE LOOKING OVER THE ENGINE INSTRUMENTS THE CREW SAY THE RT PROP OIL PRESS DROPPED FROM 50 TO 10 PSI, THEN THE LOW OIL PRESS LIGHT ILLUMINATED. THE CREW THEN SHUTDOWN THE RT ENGINE. PROP REAR HUB SEAL FAILED. CHANGED PROP.