As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE ATTEMPTING TO REPOSITION A/C STARTED NR 1 ENG AND TRIED TO ADVANCE THE THROTTLES WHEN THE ENGINE ROLLED BACK AND THEY HAD A TAIL PIPE FIRE WHICH THEY BLEW OUT. PERFORMED BORO, NO DAMAGE FOUND. REPLACED FCU AS PRECAUTIONARY. NO EPCS MESSAGES WERE FOUND. FOUND IGVS OUT OF RIG, ADJUSTED IGV'S AND VSV'S. DUE TO HISTORY MAINTENANCE FERRIED TO ATL FOR ENGINE REPLACEMENT.