As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 EGT INDICATION ERRATIC. RETURN TO GATE. FOUND DAMAGE TO EGT HARNESS 6 INCHES FORWARD OF THE EGT JUNCTION BOX. DAMAGE DUE TO CONTACT WITH NR 4 BUMPER OF REVERSER COWL RT SIDE. REPLACED CORE EGT HARNESS ASSY, ACCOMPLISHED IDLE LEAK CK OF ENG HARNESS AREA. NO LEAKS IN HARNESS AREA. ENG EGT STEADY DURING ENG RUN.