What was found
ECONOMIC FAULT WHILE PERFORMING TASK CARD 78273000 #2 ENGINE S/N 869-209 FAULT # MS 73-313272 UPPER EGT SECTORS READING HIGH FAULT LEG #4. GROUNDED - YES. PERFORMED B737-800 FIM 77-21 TASK 801. COMPLETED EGT INDICATION SYSTEM TROUBLESHOOTING AND CONNECTOR CLEANING REF B737-800 AMM 77-21-00-140-801. PERFORMED T49.5 AND EGT SYSTEM INSPECTION PER AMM 77-21-01-200-801-F00. FOUND S1, S3, AND S4 RESISTANCE OUT OF LIMITS. REMOVED AND REPLACED S1, S3, AND S4 REF AMM 77-21-01/401. EEC TEST PASS, PERFORMED SUCCESSFUL REPAIR CONFIRMATION OF FIM 77-21 TASK 801, AND SUCCESSFUL ETOPS GROUND VERIFICATION. PERFORMED SUCCESSFUL REPAIR CONFIRMATION REF FIM 73-11 TASK 801. CLEARS THE PLT.