What was found
FLT 600 - MEX-ATL - AIRCRAFT RETURNED TO PLATFORM AS CONSEQUENCE OF AN STARTING FAILED OF THE RIGHT ENGINE. AT POSITION 24, TECHNICIANS TRIED STARTING AGAIN AND ENGINE REACHED 52 PERCENT OF N2 BUT EGT'S WERE HIGH. AT HANGAR, THE FMC WAS REPLACED IAW MM 73-21-01, TESTS IAW MM 71-01-02, ALL CORRECT. AT RON, TESTS WERE PERFORMED AGAIN, EVERYTHING WAS CORRECT. (M)