As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT EXIT POINT TURNED OFF APU PER ETOPS PROCEDURES AND GOT APU FAULT LIGHTS. DID QRH PROCEDURES. FAULT LIGHT WENT OUT AT 5 MINS. COMPLETED FIM TASK 49-60-00 APU FAULT CODE 49-11019 DC POWER LOSS SHUTDOWN POWER WENT UP & LOGGED FOR LAST APU SHUTDOWN COMPLIED WITH FIM TASK 49-10-00 AND CORRECTED THE FAULT. NO OTHER FAULTS NOTED. APU GROUND FUNCTIONAL CHECK GOOD.