As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOTS ELECTRONICS EMERGENCY EVAC SIGNAL PANEL HORN DAMAGED. REPLACED FLIGHT DECK EVAC PANEL ON P8. TESTS GOOD. DURING TEST OF EMERGENCY EVAC SYSTEM DUE TO REPLACEMENT OF FLIGHT DECK EMERGENCY EVAC PANEL. FOUND UPPER DECK EVAC PANEL AFT OF CLOSET HORN IS INOP. REPLACED, OPS CHECK GOOD.