Boeing 737-7H4 N225WN and Boeing 737-9 N919AK incident near Nashville, Tennessee

Preliminary information

On September 12, 2024, about 0914 central daylight time (CDT), Alaska Airlines flight 369 (ASA369), a Boeing 737-900, N919AK, rejected their take-off on runway 13 at Nashville International Airport (BNA), Nashville, Tennessee, when Southwest Airlines flight 2029 (SWA2029), a Boeing 737-700, N225WN, crossed the runway at taxiway T5 . There was no damage to the airplanes nor injuries to crew or passengers onboard either airplane. ASA369 was operating under the provisions of Title 14 Code of Federal Regulations Part 121 as a scheduled domestic passenger flight from BNA to Seattle-Tacoma International Airport (SEA), Seattle, Washington. SWA2029 was operating under Title 14 Code of Federal Regulations Part 121 as a scheduled domestic passenger flight from BNA to Jacksonville International Airport (JAX), Jacksonville, Florida.

The NTSB was notified of the incident and operations, air traffic control (ATC), human factors, aircraft performance, flight data recorder (FDR), and cockpit voice recorder (CVR) specialists were assigned. The ATC group convened at the BNA air traffic control tower the week of September 16th to conduct interviews, review documentation and data. Parties to the investigation are the Federal Aviation Administration (FAA), National Air Traffic Controller Association (NATCA), Alaska Airlines, Southwest Airlines, Air Line Pilots Association (ALPA), Southwest Airlines Pilots Association (APA), and Boeing Commercial Airplanes .

History of Flight

The following timeline (Table 1) was constructed from certified ATC audio re-recordings and automatic dependent surveillance- broadcast (ADS-B) data provided by the FAA. All times are in CDT. A graphical depiction of the event location with the path of the involved aircraft is shown on an overlay of a Google Earth image in figure 1.

Time Event 0912:11 Local Controller instructed the flight crew of ASA369 to line up and wait on runway 13 with good read back. 0913:01 SWA2029 flight crew contacted Ground Controller. 0913:05 Ground Controller instructed flight crew of SWA2029 to proceed to runway 20C, and to cross runway 13 at taxiway T5. 0913:13 Flight Crew of SWA2029 correctly read back the taxi instructions to Ground Controller. 0913:28 Local Controller cleared ASA369 for take off on runway 13 with good read back. 0914:30 The flight crew of ASA369 reported to Local Controller that they were aborting, followed by the Local Controller canceling takeoff clearance. 0915:10 Local Controller asked the flight crew of ASA369 if they were able to exit on Taxiway 4 and they responded yes. Table 1. Timeline of events.

Figure 1. A graphic depicting the event with ground track of involved aircraft.

ASA369 exited runway 13 on taxiway T4 and proceeded to the gate area. While ASA369 was waiting for an open gate, fuse plugs deflated all four main landing gear tires. Passengers were deplaned via air stairs on the ramp. SWA2029 taxied to runway 20C, received takeoff clearance and departed BNA for JAX.

The FDR and CVR were retrieved from the Alaska Airlines airplane, and the FDR was retrieved from the Southwest Airlines airplane. The CVR from the Southwest Airlines airplane had been overwritten. All the recorders were sent to the NTSB Vehicle Recorder Laboratory, and data has been retrieved from all the recorders. The Operations Group will be performing interviews of both flight crews involved in the incursion.

The investigation continues.

Text from the NTSB; a preliminary report can change and names no cause. Open the NTSB docket for DCA24FA300 for the full record.