As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND ECONOMIC FAULT CODE 73-31372, LEG 2 ON MCDU. UPPER EGT SECTORS READING HIGH. ACFT GROUNDED. ACCOMPLISHED FIM 73-11, TASK 801. T49.5 EGT PROBES S1 & S4 PARAMETERS READ NORMAL IN RELATION TO S2 & S3. PERFORMED EEC TEST REF MM 73-21-00-700-804-F00. NO FAULTS NOTED ON FLIGHT LEG ZERO.