As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU DET INOP ILLUMINATED ON FINAL. ACCOMPLISHED QRH APU WAS NOT RUNNING. VERIFIED FAULT STILL CURRENT. VERIFIED P/N WITH SEAMC. REPLACED TAILPIPE OVERHEAT DETECTOR ASSEMBLY WITH SERVICEABLE ONE. ACCOMP INST, TEST PASS REF M/M 26 15 01 400 802.