What was found
UPON ACCOMPLISHING TASK CARD 78273000, FMC CDU FOR ENGINE FAULTS ENGINE NR 1 HAS FAULT 77-20871, TOP LT EGT SIGNAL OUT OF RANGE. TERM OF FAULT ECONOMIC. FLT LEGS 1, 2, 3, 8, 9. ACFT GROUNDED. ON DEFERRAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UPON ACCOMPLISHING TASK CARD 78273000, FMC CDU FOR ENGINE FAULTS ENGINE NR 1 HAS FAULT 77-20871, TOP LT EGT SIGNAL OUT OF RANGE. TERM OF FAULT ECONOMIC. FLT LEGS 1, 2, 3, 8, 9. ACFT GROUNDED. ON DEFERRAL.