As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 706 - DFW-IAH - DURING CLIMB, THE FLIGHT CREW HAD AN INDICATION OF AN APU FIRE. THE APU FIRE HANDLE WAS PULLED AND THE FIRE BOTTLE WAS DISCHARGED. THE AIRCRAFT CONTINUED TO IAH AND AN UNEVENTFUL LANDING WAS MADE. INSPECTED APU AREA AND FOUND NO EVIDENCE OF FIRE. REMOVED AND REPLACED APU FIRE BOTTLE AND DISCHARGE INDICATOR DISK. APU FIRE TEST NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. (M)