As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF T/C 78273000 (ENGINE FMC CDU FAULTS). THE TOP LEFT EGT SIGNAL (T49514) IS OUT OF RANGE NR 2 ENG. VERIFIED S4 UPPER LEFT PROBE IS OUT OF TOLERANCE. REPLACED S4 PROBE ON NR 2 ENG REF MM 77 21 01, OPS NORMAL REF 71 00 00 800 811 F00. ALSO RAN NR 2 ENG AND VERIFIED PROPER OPERATION AND TOLERANCE REF FIM 77 21 00 810 804 F00.