As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENGINE LONG TIME FAULT. THE T3 SIGNAL IS OUT OF RANGE. MSG NBR: 75-20832. DEFERRED PER T/C 78273000. GROUNDED - YES. NO RECENT OR IN FLT FAULT HISTORY ON EEC BITE. INPUT MONITORING PAGE SHOWS HALF DEGREE DIFFERENCE BETWEEN CH A & CH B FOR T3 SENSOR. NO HISTORY FOR 1 YEAR, EEC GROUND TEST PASS REF B737-800 FIM 75-33 TASK 802.