What was found
FLT 413 - MIA-MEX - AIRCRAFT RETURNED TO PLATFORM AS A CONSEQUENCE OF TAT/SAT FLAGS. AUTO-TEST WAS PERFORMED ALL OK, BUT WHEN PUSHING BACK STARTED, CAPTAIN REPORTED TAKEOFF TEST COULD NOT BE ACCOMPLISHED. DURING CHECK WAS DETECTED THE RELAY R2-5 DAMAGED. IT WAS CHANGED IAW MM 34-15-00. (M)