As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU INOP. GROUNDED - YES. PERFORMED BITE REF B737-900 FIME 49-40-803, PERFORMED AS NORMAL OF THE APU, NO DEFECTS NOTED. NO FAULTS REPORTED. APU FAULT HISTORY SHOWS FAULT 49-11019, DC SHUTDOWN OF THE APU. SUSPECT INLET DOOR OUT OF SEQUENCE. PERFORMED A NORMAL SHUTDOWN AND START AGAIN, NO FAULTS REPORTED. NO HISTORY OF START FAULTS 30 DAYS.