As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE TREND DATA CONTINUES TO SHOW ERRORS INDICATIVE OF EGT INDICATION SYSTEM ANOMALIES. ALL OTHER PARAMETERS ARE NORMAL. COCKPIT INDICATION IS STILL WITHIN RANGE. STEPS 1 & 2 OF TSR 905574 CHECKED GOOD. NO FAULTS FOUND. REPLACED CJ9 HARNESS & T49.5 S1 PROBE. OPS CHECK GOOD. REF AMM 77 21 01 & 73 21 06.