What was found
During climb out of flt level 75, time 0540Z, heard an expolosion from #1 engine, confirmed #1 engine failure, #1 engine EGT went to max indication, followed emergency and abnormal procedure, fuel dump procedure was followed down to max landing weight. A/C returned to field, landing normal.Corrective Action: Removed and replaced engine I/A/W engine change paperwork. Run up checks satisfactory. Aircraft returned to service.