As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED AN UNCOMMANDED EVACUATION HORN IN FLIGHT AND THAT THE QRH RESET PROCEDURE WAS UNSUCCESSFUL. FLIGHT DECK OVERHEAD EVACUATION SWITCH IN CAPTAIN ONLY POSITION FOR THE DURATION OF THE FLIGHT. MAINTENANCE REPLACED THE EVACUATION COMMAND PUSHBUTTON SWITCH PER ESPM 20-45-22. MAINTENANCE ALSO REPLACED THE #1 CIDS DIRECTOR PER AMM 23-73-34. (AALA202502058130) A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED.