As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EPSU BATTERY (11WL) FAILED. AS NOTED ON LTPR NR #5001187284-0010 EPSU BATTERY (11WL) FAILED ON OPERATIONAL CHECK OF THE P/N OFF: AD3214-31 S/N OFF: 261418 QTY OFF: 1EA EMERGENCY POWER SUPPLY UNITS BY BITE-CHCK AND REQUIRED P/N ON: AD3214-31 S/N ON:197137 QTY ON: 1 EA REPLACEMENT. BATTERY REPLACEMENT ON (11WL) PERFORMED IAW AMM: WORK RECORDED ON LTPR NR# 5001187284-0010. WORK ACCOMPLISHED BY 33-51-38/401 REV. 117 TEST SATISFACTORY. 5H0545 AND INSPECTED BY 5H0763.