Southwest Airlines on Monday said it has added cockpit safety alerts to nearly its entire fleet of 800 aircraft. The safety alert system, designed by Honeywell, sets off verbal and text warnings if a pilot is about to use the wrong runway or approaches too fast for landing.

Southwest Airlines is adding a new cockpit alert system to help its pilots avoid dangerous situations, after carriers navigated a series of close calls at U.S. airports in recent years. The Honeywell-designed system delivers verbal warnings and text alarms if a pilot is about to use the wrong runway,