As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: REFERENCE NR 5001264948-0010. AIRCRAFT WAS NOT GROUNDED AND IS IN CHECK FOR SCHEDULED MX. DURING EPSU BATTERIES CAPACITY TEST, EPSU 13WL BATTERY FOUND OUT OF TOLERANCE. REPLACEMENT IS REQUIRED IAW AMM 33-51-38-04 CONF 00 REV 95 CORRECTIVE ACTION: INSTALLED EPSU 13WL BATTERY IAW AMM 33-51-38-400-002-A/REV 95 PART ON: P/N: 3214-31, S/N: 9910152, B/N: N702FR3570 MX ACTION IS ACCEPTABLE./END/