What was found
BOS - FLT 5172 - DURING TAKEOFF ROLL, CREW NOTED NR 2 THRUST REVERSER DISAGREE MESSAGE. ABORTED TAKEOFF AND RETURNED TO GATE. NO FURTHER INCIDENTS REPORTED. THRUST REVERSERS PUT ON MEL. MAINTENANCE REMOVED AND REPLACED NR 2 ENGINE STOW TRANSIT MICROSWITCHES S/N 0056, 0052, 0055,(UPPER A, B, AND LOWER A). OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)