The Brief A Southwest Airlines 737 and a private jet nearly collided at Chicago Midway International Airport on Feb. 25. The NTSB’s preliminary report states the Southwest flight passed less than 200 feet behind the private jet after initiating a go-around. The National Transportation Safety Board (NTSB) has released its preliminary findings on a near collision between a Southwest Airlines Boeing 737-800 and a Bombardier Challenger 350 at Chicago's Midway International Airport. READ THE FULL PRELIMINARY REPORT HEREWhat's next:The NTSB is continuing its investigation, analyzing flight data, air traffic control communications, and airport signage. The agency has invited the FAA, Southwest Airlines, and Flexjet to participate in the review.