As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3711 REPORTED A HORN SOUNDING DURING TAKEOFF ROLL, POWER WAS AT 82 PERCENT AND SPEED APPROXIMATELY 60 KNOTS. MAINTENANCE FOUND THE FLAP GAUGE TO BE AT FAULT. GAUGE WAS REPLACED AND SYSTEM OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.