As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, TAKEOFF WARNING HORN SOUNDED. ABORTED TAKEOFF. CYCLED FLAPS, ELEVATOR TRIM AND ECU MODE SWITCHES. GROUND RUN ACFT, HORN DID NOT SOUND. CONFIRMED FLAP INDICATOR CAUSING TAKEOFF WARNING WHILE IN PROPER CONFIGURATION. R & R FLAP INDICATOR. OPS CHECKED GOOD WITH WC 31-50-00Q. NO DEFECTS NOTED.