As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENG1 EEC C2 LONG-TIME FAULTS "T12 SENSOR OUT OF RANGE" & "T12 SENSOR CHANNELS A&B DISAGREE" FOUND WHILE PERFORMING TC 05-020-01. GROUNDED - YES. REMOVED AND REPLACED #1 ENG T12 SENSOR. FAULTS ARE NOW INACTIVE EEC TEST PASS IAW AMM 73-21-06-000/400-801-G00.