As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMBING THROUGH FL 200 NR 1 EGT AND RED LIGHT SPIKED ON POWER R EDUCTION EGT WAS SWUNG FULL RANGE 0 - RED LINE BOTH DIGITAL AND ANALOG T/S TO BAD EGT HARNESS. REF TO N/R 4537204 FOR REPLACEMENT OF HARNESS ON NR 1 ENG. PERFORMED TEST NR 5 REF MM-71-00-00-725-C00. ALL ENG PARA WITHIN LIMITS.