As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE BELL SOUNDED IN-FLIGHT WITH BOTH PILOT AND COPILOT MASTER FIRE WARNING LIGHTS ILLUMINATED. NO AREA OR POSITION LIGHT ILLUMINATED. INSPECTED ENGINE FOR LEAKS. ALSO, INSPECTED FIRE LOOPS FOR WEAR AND DAMAGE AND DEFECTS. NONE NOTED. OPS CHECK GOOD. (X)