As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4240 - DURING TAKEOFF ROLL, CREW ADVISORY MESSAGE - BLEED AIR FAIL, CREW ELECTED TO ABORT TAKEOFF AND RETURN TO GATE. MAINTENANCE INSPECTED AIRCRAFT AND DISCOVERED A FAULTY BLEED AIR SHUT-OFF VALVE TEMP SWITCH. REMOVED AND REPLACED FAULTY SWITCH IAW MM 36-1-04. OPS CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.