As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU WOULD NOT SHUT DOWN. EVIDENCE OF SMOKE AND FIRE. DEFERRED AND INSPECTED. STATUS - OPEN. APU HAS 90 SECOND SHUT DOWN DELAY PER M/M CHAP 49.APU OPS NORMAL. FIRE AND SMOKE CONFIRMED APU EXHAUST. DMI 3365 WAS CLEARED ON LOG PAGE 216393.