As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT LIGHT ILLUMINATED DURING APU START ON GROUND. ACFT GROUNDED. PERFORMED APU BITE TEST IAW FIM 49-60 TASK 801, AND SHOWS APU FAULT 49-41011. NO FLAME SHUTDOWN AND CURRENT STATUS MAINT MESSAGE 49-31175, FCU RESOLVER CIRCUIT SHOWS BAD. STARTED APU MULTIPLE TIMES WITH NO FAULTS AND FCU RESOLVER MESSAGE SHOWS FAULT CLEARED. NO HISTORY PAST 30 DAYS.