As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, UNABLE TO START APU. EICAS MESSAGE APU FAULT. FOUND MINI FLAG 34 DURING BITE OF APU CONTROL UNIT, REPLACED APU BATT PER M/M. APU STARTED SEVERAL TIMES SATISFACTORLY. BITE PROCEDURE 49-11-00 FIG 103 M/M24-31-04. NO FAULTS PRESENT. START IS NORMAL.