As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/PIT - FLT 6588 - DURING CRUISE AT 2,005 HOURS ON 3-30-98, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO LT ENGINE EGT GAUGE FLUCTUATION AND SRL/TTL OFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED SOFT HARNESS, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)