As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6289 - IAD-CMH - DURING CRUISE, MADE AN UNSCHEDULED LANDING DUE TO LEFT ENGINE EGT FLUCTUATION. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REPAIRED COLD SOLDER AT EGT SOFT HARNESS, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)