What was found
20 MINUTES INTO FLIGHT THE RIGHT ENGINE LOOP 1 EICAS MESSAGE CAME ON INTERMITTENTLY FOR ABOUT 10 TO 20 SECONDS AT A TIME. ABOUT FIVE MINUTE LATER THE SYSTEM FAIL LIGHT CAME ON. RESET IT ONCE BUT IT CAME BACK WITH BOTH 1 AND 2 LOOPS INDICATING FAILED. DIVERTED TO STL. REPLACED RIGHT ENGINE TS45 AND TS46 FIRE LOOPS ASSEMBLY. SYSTEM GROUND CHECKED NORMAL OPERATION.