As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 2985 DEN - DURING CRUISE FLIGHT, THE CREW HEARD A LOUD POP FOLLOWED BY A LOUD BANG THEN RECEIVED A NR 1 ENGINE OIL PRESS WARNING. THE CREW THEN ISOLATED THE ENGINE, DECLARED AND EMERGENCY AND RETURNED TO THE FIELD. MX FOUND THE FAN SECTION FWD OF THE BY-PASS GUIDE VANES DEPARTED THE ENGINE ALONG WITH THE T/R ASSY INLET COWL FAN COWL AND HAD DONE DAMAGE TO THE PYLON AND FUSELAGE SKIN AFT OF THE PRESSURE BULKHEAD. CVR AND FDR CB'S WERE PULLED BY MX. A/C IS CURRENTLY OUT OF SERVICE.