As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IRR:ON SELECTION OF TAKEOFF POWER, AT 31 DERATE-LEFT ENGINE EMITTED LOUD BANG. POWER-EPR/N1-DETERIORATED AND TAKEOFF WAS ABORTED-LESS THAN 10 KTS. MOMENTARY PUFF OF SMOKE. OTHER AIRCRAFT REPORTED FLASH AND SPARKS FROM TAILPIPE. ENGINE EGT AND OIL PRESSURE WENT RED. PERFORMED ENGINE SEVERE DAMAGE CHECKLIST AND SHUT DOWN ENGINE. FOUND METAL IN TAILPIPE. ENGINE CHANGE IN PROGRESS. REMOVED AND REPLACED NR 1 ENGINE PER TRANSMITTAL 6T103 UP T PREFLIGHT 605239. PREFLIGHT COMPLETE CK OK.