As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TC 78273000 NR 2 ENGINE UPPER EGT SECTOR READ HIGH. ECONOMIC FAULT. ACFT GROUNDED. ACCOMPLISHED FAULT ISOLATION IAW FIM 73-11, TASK 801. RAN ENGINE NR 2 AT IDLE FOR 5 MIN. ALL T49.5 PARAMETERS WERE IN RANGE, DID NOT FLUCTUATE. ELECTRONIC ENGINE CONTROL TEST PASSED. FAULT IS NOT ACTIVE AT THIS TIME.