As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EPSU BATERY (11WL) TEST FAILED; BATTERY NEEDS TO BE REPLACE. AS NOTED ON LTPR NR#5001244997-0010. EPSU BATTERY (11WL) FAILED ON EMERGENCY LIGHTING BATTERY S/N OFF: 181186 QTY:1EA P/N ON:AD3214-31 S/N ON: 273854 CAPACITY TEST AND REQUIRE REPLACEMENT. BATTERY REPLACEMENT OF QTY.1EA. WORK ACCOMPLISHED BY 5P1122 AND INSPECTED BY 5H0357. (11WL) PERFORMED IAW AMM: 33-51-38-000-002 REV 120 AND AMM:33-51 38-400-002 REV120. TEST SATISFACTORY. P/N OFF: AD-3214-31.