As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ESPU BATTERY (12WL) TEST FAILED; BATTERY NEEDS TO BE REPLACE. AS NOTED ON LTPR NR#5001232931-0010. ESPU BATT.(12WL) FAILED ON EMER.LIGHTING BATT.CAPACITY TEST. BATT.REP.OF (12WL) PERFORMED IAW AMM:33-51-38-000/400-002 REV.119. TEST SATIFACTORY. P/N OFF:AD3214-31 S/N OFF:252801 QTY 1EA P/N:AD3214-31 S/N ON: 278854 QTY:1EA.