As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE FLAME-OUT AT FL 420. CHECKED RIGGING OF IGV'S, CHECKED FUEL DENSITY FOR PROPER RIGGING, VISUALLY INSPECTED COMPRESSOR AND TURBINE ROTOR FOR DAMAGE. NONE FOUND. CHECKED FUEL FILTERS FOR CONTAMINATION. NONE FOUND. THIS INSPECTION HAS REVEALED NO ENGINE PROBLEMS AT TIME OF FLAME-OUT.