Lack of protocols for switching through traffic has led to temporary halt , FAA said . In incident at Reagan Field , a plane got too close to two northbound planes . FAA : Planes were never on head - to - head collision course .
Lack of protocols for switching runway traffic patterns led to temporary halt , FAA says . In incident at Reagan airport , southbound plane got too close to two northbound planes . FAA : Planes were never on head-to-head collision course .