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 FOUR ATTEMPTS. 49-41010 NO ACCEL SHUTDOWN. PERFORMED FIM TASK 49-40 TASK 801. SUCCESSFUL START ON AC SYSTEM, OPS CHECKS ON AC/DC CHARGING SYSTEM OK, DETERMINED BATTERY VOLTAGE LOW FOR DC START. INSTALLED NEW PRIMARY BATTERY IAW AMM 24-31-11 TASK 401 OPS CHECKS NORMAL. INSTALLED NEW AUXILLIARY BATTERY IAW AMM 24-31-11 TASK 401 OPS CHECKS NORMAL.