As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF L/P 12157573, #1 ENG EC BITE TEST STILL SHOWS FAULT MSG 77-20871. GROUNDED - YES. PERFORMED T49.5 PROBE AND EGT SYSTEM INSPECTION PER AMM TASK 77-21-01-200-801-F00. J10 HARNESS FOUND TO HAVE RESISTANCE VALUES OUT OF TOLERANCE FOR S4 TEMP PROBE. REMOVED AND REPLACED J10 HARNESS IN REFERENCE TO AMM TASK 73-21-06-400-802-F00. PERFORMED FADEC SYSTEM TEST IN REFERENCE TO AMM TASK 73-21-00-700-802-F00. OP CHECKS GOOD.