The NTSB subpoenaed two pilots involved in a runway incursion at JFK International Airport after they declined a request for a recorded interview.
This image from the NTSB preliminary report shows the path the American Airlines 777 was supposed to take (dashed lines) to Runway 4L along Taxiway K and the actual path of the airplane crossing 4L, the active runway, without clearance. (Image: NTSB)