As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN LIGHTS EMERGENCY CAPACITY TEST FAILED. REPALCEMENT OF EPSU BATTERY. (10WL) IS REQUIRED. (A3NB-33-3-6013) SEQ:633 ZONE:200 EPSU BATTERY (11WL) FAILED ON EMERGENCY LIGHTING BATTERY. WORK RECORDED ON UAL LOGPAGE CAPACITY TEST AND REQUIRE REPLACEMENT. PREFORMED EPSU BATTERY REPLACEMENT (11WL), IAW AMM:33-51-000-002/ 33-51-38-400-002 REV 122. TEST SATISFACTORY.