As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ASH 7155 IAD - CREW REPORTED THAT WHILE INBOUND APU OVER TEMP MESSAGE OCCURRED FOLLOWED BY AN APU FIRE FAIL MESSAGE WHICH WAS FOLLOWED BY AN APU FIRE WARNING. CREW ENGAGED THE FUEL SOV AND MESSAGE CLEARED. MX INSPECTED THE APU AND FOUND NO EVIDENCE OF AN ACTUAL FIRE. MX TIGHTEND THE LCV CLAMPS WITH NO FURTHER DEFECTS NOTED.