As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF AT LOW SPEED UNDER 10 KNOTS THE LE TRANSIT LIGHT ILLUMINATED & THE TAKEOFF WARNING HORN SOUNDED & THE TAKEOFF WAS REJECTED. MX MESSAGE 27-81216, F1 PROX RETRACT SENSOR S168. R & R F1 PROX SENSOR FIM 27-88 TASK 805. OPERATIONS CHECKED NORMAL, FSEU PASSED.