As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARED ENTRY DOOR SLIDE WARNING HORN SOUNDS CONTINUOUSLY. WARNING HORN CAME ON DURING CLIMBOUT AT FL 280. HORN EXTINGUISHED DESCENDING THRU 10000 FT.PERFORMED WARNING HORN TEST FOR LT ENTRY DOOR IAW AMM 52-73-12. PERFORMED TEST OF LIMIT SWITCH FOR EMERGENCY ESCAPE SLIDE, NO FAULTS NOTED AT THIS TIME IAW AMM 57-73-13.