Fatal runway collision at LaGuardia kills two pilots, prompts NTSB investigation

A routine landing turns catastrophic

The air traffic control frequency at New York’s LaGuardia Airport was nearly quiet when a controller’s voice broke in, sharply raised.

“Truck One, stop, stop, stop,” he shouted.

Seconds later, an Air Canada Express regional jet arriving from Montreal, cleared to land on the same runway, struck an airport fire truck as it crossed in front of the aircraft. The nose of the Bombardier CRJ900 crumpled around the vehicle. Both pilots were killed, and dozens of people were hurt.

About 20 minutes later, the same controller could be heard on a recording of the tower frequency reviewed by multiple news outlets.

“We were dealing with an emergency earlier and I messed up,” he said.

The late-night collision on Runway 4 at about 11:47 p.m. Sunday turned a routine cross-border flight into a rare fatal runway crash at one of the nation’s busiest airports, shutting down LaGuardia for much of the next day. It has prompted a full-scale investigation into how a fire truck sent to assist one flight ended up in the path of another.

What happened

Air Canada Express Flight 8646, operating as JAZZ 646 and flown by Canada’s Jazz Aviation, left Montréal–Trudeau International Airport on Sunday evening for the short hop to New York. On board were 72 passengers and four crew members, including the two pilots who died when the jet’s cockpit was crushed.

The National Transportation Safety Board (NTSB) said Monday it had dispatched a “go-team” to New York to determine how the jet, cleared to land on Runway 4, collided with a Port Authority Aircraft Rescue and Firefighting (ARFF) truck that had been authorized to cross the same runway.

“The NTSB is launching a go team to investigate the March 22 Jazz Aviation, Air Canada Express Flight 8646, CRJ900, airplane that collided with a fire truck on Runway 4 at LaGuardia Airport in New York,” the agency said in a statement. NTSB Chair Jennifer Homendy is leading the on-scene investigation.

Authorities said the fire truck, known as Truck 1, was responding to a separate emergency involving a United Airlines flight that had reported an odor in the cabin and cockpit. The Port Authority of New York and New Jersey, which operates LaGuardia, said the truck had been dispatched toward that aircraft when it was struck by the landing jet.

“The pilot and co-pilot were dead and 41 people were taken to hospitals — 39 from the aircraft and two PA Aircraft Rescue and Firefighting officers from the fire truck,” the Port Authority said in a statement. Officials said the two firefighters, identified as a sergeant and an officer, suffered non-life-threatening injuries.

Injuries, evacuation and airport shutdown

Photographs from the scene showed the CRJ900 resting at an angle off the runway, its tail pitched up and the front of the fuselage nearly sheared away. The cockpit windows were shattered. The truck was left mangled beneath the jet’s nose.

Despite the damage at the front, the passenger cabin remained largely intact. Passengers evacuated via emergency slides as fuel odors filled the air and emergency lights from responding vehicles bathed the scene. Social media posts from passengers and relatives described a sudden, violent jolt on landing, followed by urgent commands to evacuate.

Authorities said 39 people from the aircraft, including both flight attendants, were transported to area hospitals for treatment. Most were released within hours, though several remained hospitalized Monday with more serious but non-fatal injuries.

The crash forced the Federal Aviation Administration (FAA) to issue an immediate ground stop for LaGuardia. Arrivals and departures were halted, and the airport was closed until at least 2 p.m. Monday to allow for emergency response, debris removal and the on-scene investigation. The New York Police Department said roads and highway exits leading to LaGuardia were temporarily shut, warning drivers to “expect delays and avoid the area.”

The closure triggered disruptions across the region’s congested airspace. Flights bound for LaGuardia were diverted to John F. Kennedy International Airport and Newark Liberty International Airport, and airlines issued travel waivers for affected passengers.

Airlines respond

Jazz Aviation and Air Canada confirmed the crash and the deaths of the two pilots, both based in Canada, and said they were working with authorities and assisting families.

“Our thoughts are with all those affected by this tragic accident, including the families of our crew and our customers,” Air Canada said, adding that it is “fully cooperating with the investigation.”

The accident is the first fatal crash involving an Air Canada-branded flight since 1983, when Air Canada Flight 797 suffered a catastrophic in-flight fire. That disaster led to sweeping changes in cabin fire safety standards.

Investigators focus on runway incursion safeguards

Investigators now face the task of determining how an aircraft and an emergency vehicle were both cleared onto the same runway at the same time.

According to air traffic control recordings posted online and reviewed by journalists, a controller in LaGuardia’s tower cleared Truck 1 to cross Runway 4 while also managing Flight 8646’s final approach. As the conflict became apparent, the controller tried to recall the vehicle.

“Truck One, stop, stop, stop!” he said.

Minutes after the crash, the controller told the Air Canada crew:

“JAZZ 646, I see you collided with the vehicle. Just hold position. I know you can’t move. Vehicles are responding to you now.”

The FAA declined to comment on the controller’s actions, citing the ongoing NTSB investigation. The agency said it is supporting the safety board and that its own inspectors were on site.

The NTSB is expected to examine staffing levels and whether tower and ground positions were combined at the time of the crash—an arrangement used at some facilities during lower-traffic periods that can concentrate responsibilities in a single controller.

Labor groups have long raised concerns about controller staffing and fatigue. The Department of Transportation has acknowledged shortages at several air traffic control facilities and has pledged to increase hiring and training amid what it has called an “unacceptable” level of serious runway incursions and close calls.

Fire-rescue procedures and technology questions

Investigators will also scrutinize the Port Authority’s fire-rescue procedures and how Truck 1 was authorized to enter the movement area. Under federal rules, emergency vehicles must receive explicit clearance from air traffic control before entering or crossing an active runway. ARFF drivers are required to be trained in airport markings, signage and radio communication.

Key questions include whether the truck crew fully understood their clearance, whether they visually checked for approaching aircraft, what visibility and lighting were at the moment they entered the runway, and how quickly they responded to the controller’s stop command.

The collision echoes a 2022 crash in Lima, Peru, when a LATAM Airlines Airbus A320neo struck a fire truck that had entered the runway during a training exercise, killing three firefighters. In New York, the truck was responding to an active emergency, not a drill, but the underlying risk—vehicles on runways during aircraft operations—remains a focus of aviation safety efforts.

The FAA has spent years deploying surface surveillance systems and runway status lights at major airports to warn of potential conflicts, while industry groups are developing cockpit-based alerting systems to warn flight crews directly if another aircraft or vehicle is occupying their runway. It is not yet clear what ground-safety systems were active at LaGuardia on Sunday night or whether any alerts sounded before the collision.

What comes next

Investigators are collecting evidence from the runway, downloading data from the jet’s flight data and cockpit voice recorders, interviewing surviving crew members, controllers and firefighters, and reconstructing the sequence of events second by second.

Homendy said the board’s preliminary report—containing factual information but no analysis or cause—would likely be released within a few weeks. A final report could take a year or longer.

As LaGuardia slowly reopened Monday and delayed passengers tried to salvage travel plans, the battered CRJ900 remained a stark reminder at the edge of the field of how quickly a highly choreographed system can break down.

A routine landing, a truck dispatched to assist another aircraft and a controller juggling emergencies were enough, in a matter of moments, to overwhelm layers of safety that have made such collisions rare.

Two pilots did not survive that failure. Regulators and airport operators now face a central question: what must change to ensure that, on a future late-night approach to a crowded runway, a single mistake is not enough to be fatal.