As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FIRE ALERT FOLLOWED QRH ALERT REMAINED ILLUMINATED UNTIL LDG ROLLOUT APU WAS OFF AT THE TIME. INSPECTED APU COMPARTMENT FOUND NO EVIDENCE OF FIRE OR OVERHEATING CONDITIONS. OPS & LEAK CHECK OF APU GOOD, REF 717 M/M 49-10. REMOVED AND REPLACED APU FIRE DETECTOR CONTROL UNIT RE 26-12, NO FAULTS NOTED AT THIS TIME.