As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: AUXILIARY POWER UNIT AGENT DISCHARGE LIGHT ILLUMINATED DURING CRUISE. NO ELECTRONIC CENTRALIZED AIRCRAFT MONITOR INDICATION AND LIGHT WENT OUT DURING DESCENT. NO AUXILIARY POWER UNIT START ATTEMPTED. AUXILIARY POWER UNIT FIRE DETECTION SYSTEM TEST ACCOMPLISHED AND FUNCTION DISPLAY UNIT AUXILIARY POWER UNIT TEST PASSED PER AMM 26-22-00-710-001-A.