As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 3 ENGINE HAS HAD A SHIFT IN EGT TRENDS WITH ALL OTHER PARAMETERS STABLE. THIS NORMALLY INDICATES AN IMPENDING EGT INDICATION SYSTEM FAILURE. TESTED NR 3 ENG EGT INDICATION SYSTEM PER E.O. 8-7720-E0330327. R & R LT UPPER, RT UPPER AND LT LOWER HARNESSES REF AMM 77-21-01-2 AND LOWER LEAD REF AMM 77-21-02-2. RUN QUAL AMT PERFORMED HI PWR RUN 80% N1 ON ENG 1 AND 3 FOR COMPARISON, ALL PARAMETERS NORMAL, NO EXCEEDANCE AND NO FLUCTUATIONS NOTED REF ENG RUNFORM M-3623.