As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: PER CARD 2735 AT A-CHECK, EMERGENCY POWER SUPPLY UNIT BATTERIES NEEDED TO BE REPLACED. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT BATTERIES PER AMM 33-51-38 AND PERFORMED SATISFACTORY OPERATIONAL CHECK.