As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TAIL PIPE FIRE ENGINE #1. EXTINGUISHED ON ITS OWN<[01] INSPECTED #1 ENGINE INLET & EXHAUST. FOUND OIL ACCUMULATION IN CENTER EXHAUST PLUG CAVITY. NO OTHER DEFECTS NOTED. OILE CONSUMPTION & PSI ARE WITHIN NORMAL LIMITS. REF FIM 71-05 TASK 811. POWERPLANT ENGINEERING WILL MONITOR. A/C OK FOR SERVICE.