As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 4 ENGINE FIRE, AFTER SETTING CLIMB THRUST, NR 4 ENGINE FIRE LIGHT LIT AND BELL SOUNDED. CONFIRMED BOTH NR 4 NACELLE TEMP. INDICATORS PEGGED OUT HIGH. ACCOMPLISHED ENGINE FIRE SEVERE DAMAGE CHECKLIST WITH FIRE INDICATION OUT AFTER ONE BOTTLE. APPROXIMATELY 5 MIN. LATER FIRE LIGHT AND BELL SOUNDED AGAIN; DISCHARGED SECOND BOTTLE AND RETURNED TO OBBI.