As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED ON DESCENT, NOTICED OIL PRESSURE FLUCTUATIONS ON E1. THE FLIGHT LEVELED OFF AT 11,000FT AND NOTICED A OIL ODOR, BUT NO VISIBLE SMOKE WAS PRESENT. THE CREW REPORTED E1 ENGINE VIBES AND WHILE FOLLOWING THE QRH THE E1 OIL PRESSURE DROPPED INTO THE RED AND THE CREW SHUT DOWN E1. THE AIRCRAFT LANDED IN CID WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ENGINE AND FOUND THE AFT TURBINE HAD LOST A BLADE. THE ENGINE WAS REPLACED WITH NO FURTHER DEFECTS NOTED.