What was found
WHILE ACCOMPLISHING T/C 78273000 FOUND NR 1 ENGINE FAULT MSG # 77-10851. BOTTOM RIGHT EGT SIGNAL (T495S2) IS OUT OF RANGE. GROUNDED - YES. PERFORMED EGT SYS INSP - RESISTANCE CKS PER AMM TASK 77-21-01-200-801-F00 AND FOUND EGT PROBE S1 OUT OF LIMITS. ACCOMPLISHED EGT CLEANING PER AMM 77-21-00-140-801. REMOVED AND REPLACED EGT PROBE S2 PRECAUTIONARY PER AMM 77-21-01/401. TEMPERATURES ARE WITHIN LIMITS. EEC GROUND VERIFICATION TEST PASSED. THIS CLEARS PLT.