What was found
DEN - ON FLIGHT 4339 FIRE SYSTEM FAULT STATUS MESSAGE CAME ON 3-5 TIMES THROUGHOUT THE FLIGHT. REMOVED AND REPLACED RIGHT ENGINE UPPER FIRE DETECTION RAIL. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DEN - ON FLIGHT 4339 FIRE SYSTEM FAULT STATUS MESSAGE CAME ON 3-5 TIMES THROUGHOUT THE FLIGHT. REMOVED AND REPLACED RIGHT ENGINE UPPER FIRE DETECTION RAIL. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.