As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING TASK CARD 33-51-00-710-003-A FWD EPSU BATTERY FIN (10WL) AND AFT EPSU BATTERY FIN (13WL) FAILED BATTERY CAPACITY TEST. / REMOVED AND REPLACED FWD AND AFT EPSU BATTERIES IAW AMM 33-51-38-000-002-A. PERFORMED BITE CHECK OF THE EPSU'S IAW AMM 33-51-00-710-001. OPS CHECK GOOD. NO OTHER DEFECTS NOTED."