As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: EMERGENCY EVAC SIGNAL SYSTEM ALARM ON; UNABLE TO TURN OFF. ***SUPPLEMENTAL ACTION SECT 4: RESET BREAKER K-4 ON 310 PANEL MANULY RESET HORN ON EA FA PANEL AND FLIGHT DECK, PERFORMED OPS TEST IAW AMM 25-63-02.***(CLOSED)