As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT NOT GROUNDED) FAILED CAPACITY TEST. C/W TC A32X-335100-03-1-001. REMOVED AND REPLACED ALL FOUR EPSU BATTERIES DUE TO CAPACITY FAILURE IAW AMM 33-51-38-000-002-A AND 33-51-38-400-002-A. OP'S CHECKS SATISFACTORY. WO# 521556, WEEKLY CHECK AND CABIN EMERGENCY LIGHTING BATTERY TEST ACCOMPLISHED. AWR ACCOMPLISHED IAW GMM CHAPTER 2 SECTION 6."