As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: APU FIRE DISCHARGE LIGHT ILLUMINATED DURING FLIGHT. STATUS PAGE INDICATES NORMAL. MAINTENANCE ACCOMPLISHED APU FIRE TEST PER AMM 26-22-00 AND MESSAGE, MAINTENANCE ALSO VISUALLY CONFIRMED NO EVIDENCE OF APU FIRE.