As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 302 - GEG-SEA - EN ROUTE TO SEA, THE NR 1 FIRE DETECTION LOOP LIGHT CAME ON IN FLIGHT. CREW FOLLOWED APPROPRIATE AOM PROCEDURES. THE AIRCRAFT MADE A SAFE LANDING. MAINTENANCE SECURED FIRE LOOP TO NR 1 ENGINE. LIGHT REMAINED OUT. OPERATIONAL CHECK NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. (M)