As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERSION AT CRUISE, FIRE WARNING LIGHT ILLUMINATED & BELL SOUNDED FOR APPROX 5 SECONDS. ALL LIGHTS & INDICATIONS ON THE FIRE PANEL WERE ILLUMINATED DURING THE WARNING AS IF THE LAMP TEST BUTTON HAD BEEN PUSHED. R & R CARGO FIRE PANEL.