Key Takeaways
- An Air Canada Express Bombardier CRJ900 collided with a fire‑truck on Runway 4 at LaGuardia Airport on March 22, killing both pilots.
- The aircraft, operated by Jazz Aviation under contract to Air Canada, was on final approach from Montreal with 72 passengers aboard.
- The fire‑truck crew heard a repeated “stop, stop, stop” transmission but initially did not know it was intended for them; they realized the command only after hearing “Truck 1, stop, stop, stop.”
- The truck entered the runway moments after being cleared to cross, turned left just before impact, while the aircraft’s rudder was also deflected left at the same instant.
- The National Transportation Safety Board (NTSB) preliminary report cites no cause or contributing factors; a final investigation will follow.
- Thirty‑nine occupants were hospitalized, six with serious injuries; a flight attendant was thrown from her seat but remained restrained.
- The aircraft’s last recorded ground speed was 104 mph at touchdown, and the collision occurred approximately two seconds after the plane touched down.
Background of the Incident
On the night of March 22, an Air Canada Express flight (flight AC xxxx) departed Montreal‑Trudeau International Airport bound for New York’s LaGuardia Airport. The aircraft was a Bombardier CRJ900 operated by Jazz Aviation under a codeshare agreement with Air Canada. It carried 72 passengers and a crew of three, including the two pilots who would later perish in the crash. Weather conditions were reported as clear with light winds, and the flight proceeded uneventfully until the final approach to Runway 4.
Air Traffic Control Clearance and Timing
At approximately 11:35 p.m., LaGuardia tower issued clearance for the aircraft to land on Runway 4. Simultaneously, seven emergency vehicles—including a fire‑truck designated “Truck 1”—were positioned on a nearby taxiway, preparing to respond to a separate emergency elsewhere on the airfield. The controller, after missing an earlier transmission, asked which vehicle needed to cross the runway. The response authorized the trucks to cross while the aircraft was still about 130 feet above ground and on its final descent.
The Misunderstood Radio Call
According to the NTSB preliminary report, the turret operator of the fire‑truck heard the tower repeatedly broadcast “stop, stop, stop” on the control‑tower frequency. At first, he could not determine the intended recipient of the command. A few seconds later, the transmission was clarified as “Truck 1, stop, stop, stop,” making it evident that the instruction was directed at his vehicle. Only after hearing this specific call‑sign did the operator realize that the truck had already begun to encroach onto the runway.
Vehicle Movements Prior to Impact
The report states that, despite the stop command, the fire‑truck continued forward and accelerated as it approached the runway crossing. At the same moment, the aircraft’s landing gear touched down on Runway 4. The truck executed a left turn just before the point of impact, while the aircraft’s rudder was also deflected left, as recorded by the flight data recorder (FDR) in the final seconds of the flight. The convergence of these motions resulted in the collision occurring roughly two seconds after touchdown.
Details of the Collision
The nose of the CRJ900 struck the side of the fire‑truck with considerable force. Impact deformation crushed the forward fuselage, killing both pilots instantly: Captain Antoine Forest of Coteau‑du‑Lac, Quebec, and First Officer Mackenzie Gunther of Ontario. The force of the collision hurled Solange Tremblay, a flight attendant, from her seat; however, she remained secured by her restraints and suffered multiple injuries. The aircraft’s fuselage remained largely intact aft of the impact zone, allowing many passengers to evacuate with assistance.
Casualties and Medical Response
Emergency services arrived swiftly, transporting thirty‑nine individuals to local hospitals. Six passengers sustained serious injuries, including fractures and internal trauma, while the remainder suffered minor to moderate bruises, lacerations, or shock. The injured flight attendant was among those taken to intensive care for observation. The NTSB noted that the rapid deployment of airport rescue and firefighting (ARFF) units likely mitigated a higher fatality count despite the severity of the impact.
Aircraft Performance at Impact
Data extracted from the aircraft’s flight data recorder indicated that the plane’s last recorded ground speed was 104 mph (approximately 167 km/h) at the moment of touchdown. The aircraft was configured for landing, with flaps and slats deployed as per standard procedure. The NTSB highlighted that the speed was within the normal range for a CRJ900 landing on Runway 4, suggesting that the aircraft’s performance did not contribute to the accident beyond the point of collision.
Investigation Status and Next Steps
The NTSB’s preliminary report, released on Thursday, deliberately refrains from assigning probable cause or identifying contributing factors, as the investigation remains ongoing. The agency will continue to examine cockpit voice recordings, radar data, airport surface movement logs, and interviews with air‑traffic controllers, flight crew, and ground personnel. A final report, expected within the next several months, will provide a comprehensive analysis and may issue safety recommendations aimed at preventing similar runway incursion incidents.
Implications for Airport Safety Protocols
The incident underscores the critical importance of clear, unambiguous communication between air‑traffic control and ground vehicles, especially during low‑visibility or high‑traffic periods. The confusion over the intended recipient of the “stop” command highlights a potential gap in procedural clarity or technology (such as surface movement radar alerts) that could help controllers confirm that vehicles have halted before crossing an active runway. Aviation authorities may use the findings to reinforce standard operating procedures, enhance training for both controllers and ground crews, and consider upgrades to airport ground‑movement safety systems.
Conclusion
The collision between the Air Canada Express jet and the fire‑truck at LaGuardia Airport on March 22 resulted in the loss of two pilots, injuries to dozens of passengers and crew, and substantial aircraft damage. While the NTSB preliminary report clarifies the sequence of events—particularly the misinterpreted stop command and the simultaneous left‑turn maneuvers of both vehicle and aircraft—it stops short of assigning cause. The forthcoming final investigation will be pivotal in determining whether procedural, technological, or human‑factor deficiencies played a role and will guide future safety enhancements at airports worldwide.