As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A CABIN OVER PRESSURE HORN LOCATED ON MAIN ENTRY DOOR SOUNDS CONTINUOUSLY. ALL DOOR PRESSURIZATION READINGS NORMAL. PERFORMED EMERGENCY ESCAPE SLIDE RELEASE AND RESIDUAL PRESSURE WARNING ADJ/TEST PROCEDURE IAW AMM 52-73-00-05 AND ASM 52-73-00 SCHEM 02 PG 106. FOUND WARNING LIGHT & BUZZER WARNING NORMAL, OK FOR SUBSEQUENT FLIGHT.