As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. DURING TAKEOFF ROLL A PAX REPORTED SEEING FLAMES COMING FROM THE NR 1 ENG TAIL PIPE. NO INDICATION RECEIVED IN COCKPIT. ABORTED TAKEOFF AT APPROX 80 KNOTS. FOUND OIL PUDDLING IN EXHAUST FLAME ARRESTOR AREA. R & R 1 ENG IAW MCM 71-94-01. ACCOMPLISHED OPERATIONAL & LEAK CHECKS IAW MCM 71-95-01.