As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GEG - ON CLIMBOUT THROUGH 10,000 FEET, NR 1 ENGINE FIRE WARNING LIGHT ILLUMINATED AND BELL SOUNDED. SILENCED ALARM, SHUT DOWN ENGINE PER EMERGENCY CHECKLIST, BOTTLES NR 1 AND 2. BOTH FIRE LIGHTS REMAINED ILLUMINATED. MADE SINGLE ENGINE EMERGENCY LANDING IN GEG WITH OUT INCIDENT. NO FIRE DAMAGE WAS FOUND UPON INSPECTION. CLEANED FIRE LOOP CONNECTORS. REPLACED EXTENDABLE SQUIB CARTIRAGE AND EXTINGISHING BOTTLES. COMPLIED WITH HIGH POWER ENGINE RUNS. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.