As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND ECONOMIC FAULT CODE 77-20861, THE BOTTOM LEFT EGT SIGNAL (T495S3) IS OUT OF RANGE ON #1 ENGINE. GROUNDED - YES. (ITEM RESOLVE UNDER MDDR: 60591755) (RESOLVED ON W/O: 1964682 TASKCARD: N/R-00001 ) ACCOMPLISHED TASK CARD 78273000 INTERROGATE THE FMC CDU FOR ENGINE FAULTS FOR #1 ENGINE. NO FAULT ECONOMIC CODES NOTED. THIS CLEARS PLT AND C/N#07008403 REMOVED. SEAMC ASHRAFF NOTIFIED.