Quick summary
A runway collision at LaGuardia Airport late Sunday night killed both pilots aboard Air Canada Express Flight AC8646 and triggered a total ground stop that has diverted hundreds of flights to Newark and JFK. The Bombardier CRJ-900 struck a Port Authority fire truck on Runway 4 at 11:38 PM on March 22, 2026, moments after landing from Montreal. All 76 passengers survived, though approximately 70 were treated for injuries. The airport remains closed until at least 2:00 PM ET today, with the NTSB on-site investigating a potential air traffic control breakdown.
Preliminary ATC recordings show a controller cleared the fire truck to cross the active runway, then screamed “Stop, stop, stop!” seconds before impact. Anyone with a LaGuardia booking today faces cancellation or diversion — call your airline now to rebook without fees.
LaGuardia Airport shut down completely after an Air Canada Express regional jet collided with an airport fire truck during its landing roll late Sunday night, killing both pilots and injuring dozens of passengers. The FAA issued a ground stop for all arriving and departing flights within minutes of the 11:38 PM incident, and the airport remains closed this morning with an estimated reopening of 2:00 PM Eastern Time.
Flight AC8646, a Bombardier CRJ-900 operated by Jazz Aviation under the Air Canada Express brand, had just touched down on Runway 4 from Montreal when it struck Port Authority Airport Rescue and Fire Fighting vehicle “Truck 1” near Taxiway E. The aircraft was decelerating at approximately 21 to 24 knots — roughly 24 to 28 miles per hour — when the collision occurred.
The pilot and co-pilot were killed on impact. Two Port Authority personnel inside the fire truck sustained broken limbs and are in stable condition at a local hospital. All 76 passengers and the two remaining cabin crew survived, though approximately 70 people were treated for injuries, the majority classified as minor.
Hundreds of flights scheduled to arrive at or depart from LaGuardia have been diverted to Newark Liberty and John F. Kennedy airports. Perimeter roads around the airport in Queens remain blocked by emergency vehicles, complicating ground access for travelers attempting to reach the diversions.
ATC recordings suggest communication breakdown
Audio from LiveATC.net captured what appears to be a critical failure in ground coordination. A controller can be heard clearing “Truck 1” to cross Runway 4 at Taxiway D — the same runway where AC8646 was landing. Moments later, the controller’s tone shifts to panic: “Stop Truck 1! Stop, stop, stop!”
The aircraft was traveling at a relatively low ground speed at the moment of impact, but the height difference between the CRJ-900’s nose and the heavy fire apparatus caused what the Port Authority described as “significant structural damage.” Photos from the scene show the jet’s nose tilted sharply upward, with the forward fuselage crumpled.
The National Transportation Safety Board arrived on-site Monday morning to lead the investigation. Initial reports from AIRLIVE indicate the NTSB will focus on ATC protocols for active runway crossings and whether the fire truck crew received conflicting instructions.
| Factor | Detail | Status |
|---|---|---|
| Flight | AC8646 (YUL–LGA) | CRJ-900, C-GNJZ |
| Fatalities | 2 (pilot, co-pilot) | Confirmed |
| Passengers | 76 + 4 crew | ~70 treated, mostly minor |
| Ground crew | 2 firefighters | Stable, broken limbs |
| Airport status | Total ground stop | Until 2:00 PM ET March 23 |
| Diversions | Hundreds | EWR, JFK |
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Last fatal Air Canada incident was 43 years ago
This is the first fatal accident involving Air Canada or its regional partners since Flight 797 caught fire on June 2, 1983. That DC-9, flying from Dallas to Montreal via Toronto, experienced an in-flight fire that killed 23 of the 46 people aboard after an emergency landing in Cincinnati. All passengers survived the initial touchdown, but smoke inhalation during evacuation proved fatal for nearly half.
The CRJ-900 has no prior fatal accidents in commercial service. The aircraft type, manufactured by Bombardier and widely used by regional carriers across North America, has been in operation since 2003 and is considered one of the safest regional jets in the fleet.
LaGuardia’s last major incident was a 2019 nose gear collapse involving a Delta Air Lines A320 on landing. That aircraft skidded off the runway with no fatalities and only one minor injury reported.
Monitor airline status pages and rebook immediately
The FAA ground stop means no flights are landing or taking off until wreckage is cleared and the NTSB authorizes runway reopening. The 2:00 PM ET estimate assumes debris removal proceeds without complications.
- Check flight status now: Use your airline’s app or website — do not rely on third-party aggregators, which lag official updates by 15 to 30 minutes.
- Call to rebook without fees: Air Canada 1-800-247-2262, Delta 1-800-221-1212, American 1-800-433-7300. Most carriers are waiving change fees for March 23 LaGuardia flights.
- Consider alternate airports: Newark and JFK are absorbing diverted traffic, but both have more capacity than LaGuardia. If your airline offers a same-day switch to EWR or JFK, take it.
- Register for embassy alerts: If you’re traveling internationally and your connection is disrupted, register with your embassy’s crisis alert system — STEP for US citizens, FCDO for UK nationals — to receive real-time updates on airport reopening and alternate routing.
Watch: The NTSB’s preliminary report, typically released within 30 days, will determine whether ATC protocol changes are required at LaGuardia and other high-density airports. If the investigation confirms a ground communication failure, expect enhanced runway crossing procedures that may add 5 to 10 minutes to taxi times for the next 6 to 12 months.
Questions? Answers.
Will Air Canada compensate passengers on AC8646?
US Department of Transportation rules require airlines to refund or rebook passengers without fees when an incident causes a cancellation or significant delay. Passengers on AC8646 are entitled to rebooking on the next available flight at no charge. For Canadian departures, Air Passenger Protection Regulations mandate compensation up to CAD 1,000 for delays exceeding three hours if the airline is at fault — though this incident may qualify as an extraordinary circumstance, which exempts carriers from cash compensation.
How long will LaGuardia remain closed?
The FAA estimates a reopening at 2:00 PM Eastern Time on March 23, 2026, but this depends on wreckage removal and NTSB clearance. If the investigation requires extended runway access, the closure could extend into the evening or beyond. Monitor the FAA’s fly.faa.gov portal for real-time updates.
What happens to flights already diverted to Newark or JFK?
Airlines will either bus passengers to LaGuardia once it reopens or rebook them on the next available flight from the diversion airport. If you were diverted, contact your airline immediately — do not wait at the gate. Most carriers are offering hotel vouchers for overnight delays caused by the ground stop.
