As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON T/O, ROLL WITH INITIAL APPLICATION OF PWR, THE NR 2 ENGINE EGT FLUX BETWEEN 0 AND 500 DEGREES. CHECKED ENG WIRING FROM TERMINAL BLOCK TO CONNECTOR D400. CLEANED PINS 25/26. RAN ENGINE TO T/O PWR SEVERAL TIMES, COULD NOT DUPLICATE. EGT INDICATED NORMAL. USING METER EGT WIRING ALL THE WAY TO PYLON ALL CHECKED GOOD.