What was found
FLT 5090 - ON 1-17-96 DURING TAKEOFF ROLL, THE BETA LIGHT ILLUMINATED. THE CAPTAIN ABORTED THE TAKEOFF AND RETURNED TO GATE. CANNON PLUGS WERE CLEANED AND THE RESISTANCE OF THE BETA SWITCH AND CANNON PLUGS WERE CHECKED. THE AIRCRAFT WAS THEN GROUND RUN AND A FUNCTION CHECK OF THE BETA SWITCH WAS PERFORMED. ALL INDICATIONS WERE NORMAL. THE AIRCRAFT WAS RETURNED TO SERVICE. (X)