As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, APU FAILED TO START FAULT LGT ILLUM AND EICAS MSG APU FAULT DISPLAYED. ADDITIONAL START ATTEMPTS UNSUCCESSFUL. PERFORMED FIM 49-11-00, REPLACED APU TRU PER BLOCK 23 OF FIG 106B AND AMM 24-32-04. GROUND RUN OPS CHECK GOOD. APU STARTED IN LITTLE OVER 1 MIN, (FAULT FOUND WAS A/C START CIRCUIT; MINI FLAG 34).