What was found
CREW REPORTED TOTAL AIR TEMPERATURE PROBE MESSAGE WITH ASSOCIATED AUTO THROTTLE DISCONNECT MESSAGE AND RIGHT ENGINE ELECTRONIC ENGINE CONTROL MESSAGE. RETURNED TO BOS AND LANDED WITHOUT INCIDENT. REPLACED TOTAL AIR TEMPERATURE PROBE (102LJ2AG). ACCOMPLISHED FUNCTIONAL CHECK FLIGHT. PROBLEM REPEATED AS SOON AS AIRCRAFT ROTATED AND ALL GEAR OFF GROUND. REPLACED RELAYS K410 AND K203 (BACR13CG2A AND 7705402). SYSTEM GROUND CHECKED NORMAL OPERATION.