As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE FLAME-OUT. *S/D* TROUBLESHOOTING ON THE GROUND SUGGESTED THAT THE AUTOTHROTTLE WAS THE CAUSE AND IT WAS REPLACED. THE FUEL PUMP AND MAIN ENGINE CONTROL WERE ALSO CHANGED AS A PRECAUTION. SUBSEQUENT ENGINE RUNS SHOWED ALL PARAMETERS WITHIN LIMITS.