As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, SPARKS WERE NOTED COMING FROM NR 1 ENGINE TAILPIPE. ALL ENGINE PARAMETERS CHECKED OK. NR 1 ENGINE FLAMED OUT 2 MINUTES LATER. FLIGHT CREW DIVERTED TO GTF AND PERFORMED AN UNEVENTFUL LANDING. MAINTENANCE REPLACED THE NBR 1 ENGINE.