As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT TEST FAILED. RECEIVED 2 MESSAGES. FOUND SEAT 24C EMERGENCY LIGHT HARNESS GROUNDED TO SEAT FRAME. REPLACED EMERGENCY LIGHT HARNESS AT SEAT 24C. ACCOMPLISHED EMERGENCY LIGHTS TEST. FAULTED EPSU FWD. ACCOMPLISHED TEST ON EPSU, FAULTED BATERY. REPLACED THE BATTERY IAW MM 33-51-38. ACCOMPLISHED EMERGENCY LIGHTS TEST. TEST OK