As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING START, APU FAULT CAME ON WITH NO START. ACFT GROUNDED. FAULT/MAINT HISTORY HAS FAULTS: 49-41012, 49-15004, 49-72104. CLEARED FAULTS AND STARTED SUCCESSFUL. PERFORMED SUCCESSFUL COLD SOAK START. COMPLETED APU INLET DOOR ADJUSTMENT AND INLET DOOR POSITION SWITCH ADJUSTMENT. REPLACED AIR INLET DOOR POSITION SWITCH IAW MM 49-15-41.