As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND ECONOMIC FAULT ON NR 1 ENGINE. 77-20871 TOP LEFT EGT SIGNAL T495S4 IS OUT OF RANGE. ACFT GROUNDED. EEC BITE DONE IAW FIM 73-00 TASK 801, NO ACTIVE FAULTS, NO FAULT HISTORY. EEC TEST DONE IAW AMM 73-21-00-700-804, NO FAULTS FOUND, TEST PASSED. T49.5 INPUT MONITORING SHOWS LESS THAN 25 DEGREES DIFFERENCE BETWEEN PROBES. NO HISTORY PAST 30 DAYS.