What was found
BOS - FLT 3143 - AIRCRAFT WAS DOING A FERRY FLIGHT, ABORTED TAKEOFF ROLL WHEN THE AUTOCOARSEN LIGHT ILLUMINATED. MAINTENANCE MEL'D THE AUTOCOARSEN SYSTEM AND THE AIRCRAFT CONTINUED TO ALBANY. AT ALBANY, MAINTENANCE REPLACED BOTH P3 SWITCHES, PERFORMED THE REQUIRED OPERATIONAL CHECKS AND RETURNED THE AIRCRAFT TO SERVICE. (M)