As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD/ALB - FLT 6258 - DURING CRUISE AT 1837 HOURS ON 1-30-98, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO FO'S WINDSCREEN HEAT WENT TO WARM-UP AFTER TAKEOFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND SWAPPED LEADS TO ALTERNATE HEAT SENSOR, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)