As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING TC 78273000 LEFT ENGINE HAD AN ECONOMIC FAULT MESSAGE, LT 77-10852, THE BOTTOM RIGHT EGT SIGNAL T495S2 IS OUT OF RANGE. ACFT GROUNED. EVALUATION SHOWED NO ACTIVE FAULTS OR ANY FAULTS IN FAULT HISTORY. ALL T49.5 READINGS WITHIN LIMITS. ALL TEST PASS. CLEARS PLT.