As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAKEOFF ROLL, NO TAKEOFF ANNUNCIATOR CAME ON . AC WAS IN PROPER CONFIGURATION. TROUBLESHOT TO SPEED BRAKE SYSTEM. FOUND MOISTURE AND CORROSION IN CONNECTOR JL001 GOING TO THE LT SPEED BRAKE LIMIT MONITORS SWITCHES. REMOVED MOISTURE AND CORROSION. SPEED BRAKE AND ANNUNCIATORS OPS CHECK GOOD IAW 560 MM 27-61-00.