As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON POST FLIGHT WALK AROUND 2 LOUD POPPING NOISES AND SMOKE SPOTTED ON THE OUTSIDE OF NR 2 ENGINE OBSERVED BY RAMP SUPERVISOR. TROUBLESHOOTING ENGINE NR 2 FIRE BOTTLE DISCHARGE TO P8-1 PANEL (MODULE) ENGINE/APU FIRE. REPLACED P8-1 PANEL IAW B737-400 AMM 26-21-51-404-007 AND BOTH ENGINE FIRE EXTINGUISHER BOTTLES IAW B737-400 AMM 26-21-11-404-010. INSPECTED AREA OF ENGINE NR 2 DUE TO DISCHARGE OF BOTTLES IAW B737-400 AMM 72-00-00-216-04 6-000.