As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE A AND B FIRE DETECTION LOOP LIGHTS NR 2 ENGINE ON INTERMITTENTLY WITH POWER REDUCED ON FINAL RECEIVED FULL FIRE INDICATION AND ACCOMPLISHED FIRE SHUTDOWN PROCEDURES. FOUND BLEED AIR LEAK. INSTALLED BORESCOPE PLUG, CLEANED A AND B FIRE DETECTOR CONTROLLERS PER MM 36-11-00, OPS CHECK GOOD ON GROUND.