As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NR 1 ENGINE FLAMED OUT WHILE ON DESCENT INTO OMA. ENGINE RESTART ATTEMPT WAS UNSUCCESSFUL. THE A/C LANDED WITHOUT INCIDENT. THE NR 1 ENGINE IS BEING REPLACED. INVESTIGATION FOUND GEARBOX FAILURE. SHOP FINDINGS REVEALED GEAR FAILURE CAUSED BY IMPROPER CONCENTRATION OF HYDROCHLORIC ACID USED DURING MANUFACTURING PROCESSES PRIOR TO BLACK OXIDE COATING.