As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6562 - IAD-GSO - DURING CRUISE, AIRCRAFT MADE A UNSCHEDULED LANDING AT IAD DUE TO LEFT ENGINE INLET HEAT INOP. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED, CLEANED AND REINSTALLED CANNON PLUG. MAINTENANCE GROUND RAN AIRCRAFT, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)