As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENGINE TAIL PIPE FIRE AT GATE<[01] LP 2602505 AP 3395119 INSPECTED INLET AND EXHAUST FOUND OIL ACCUMULATION IN THE CENTER EXHAUST PLUG CAVITY NO OTHER DEFECTS NOTED. OIL CONSUMPTION AND PRESSURE ARE WITHIN NORMAL LIMITS. REF FIM 71-05 TASK 811. POWERPLANT ENGINEERING WILL MONITOR. AC OKAY FOR SERVICE.