As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2294 CHECK FIRE DETECTION LIGHT CAME ON IN FLIGHT THEN WENT OUT AFTER SEVERAL SECONDS. MASTER WARNING CAME ON WITH CHECK FIRE DETECTION, BUT NO OTHER LIGHTS OR INDICATIONS CAME ON OR STAYED ON. TROUBLESHOOT SYSTEM IAW FIM 26-10-00 AND RAN AIRCRAFT ENGINES AT POWER FOR 10 MINUTES. NO PARTS REPLACED. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.