As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX - EEL - EMERGENCY POWER SUPPLY UNIT (EPSU) FIN#13WL FAILED TEST AFTER BATTERY REPLACEMENT. EXTERIOR LIGHT FAULT INDICATION. PERFORMED TROUBLESHOOTING PROCEDURE. FOUND LOOSE WIRE CONNECTOR ON R AFT DOOR SLIDE LIGHT. SECURED CONNECTOR. SYSTEM TEST GOOD.