A timeline of the deadly collision at LaGuardia Airport

NEW YORK (AP) — It took little than a infinitesimal for a regular landing to spiral into a deadly clang Sunday astatine New York's LaGuardia Airport. But the collision betwixt an Air Canada formation and a occurrence motortruck crossing the runway was the culmination of a bid of events that began overmuch earlier.

The Associated Press created this timeline based connected a reappraisal of aerial postulation power recordings and accusation from the Federal Aviation Administration, publically disposable formation tracking information and the National Transportation Safety Board, including accusation it obtained from the jet's cockpit dependable recorder.

A precocious departure from Montreal

10:12 p.m.: Air Canada Express Flight 8646, operated by Jazz Aviation, leaves Montréal–Trudeau International Airport, 2 hours and 13 minutes late. By the clip the craft reaches New York, it is portion of an influx of late-arriving flights, including immoderate waiting extended periods for a gate.

Issues connected the crushed astatine LaGuardia

11:16:42 p.m.: A United aircraft, Flight 2384, aborts takeoff for a 2nd clip due to the fact that of an anti-ice informing airy successful the cockpit.

11:20:48 p.m.: “We person an odor connected the level arsenic good present astatine this time," the United aviator reports. “We are going to beryllium going backmost to the gate, petition occurrence arsenic well,” utilizing shorthand for the airport’s occurrence rescue team.

11:21:12 p.m.: Another aviator chimes in: “If that’s a sewer odor … we smelled that excessively going astir the terminal there.”

11:22:24 p.m.: A controller asks the United aviator if it is simply a fume odor. He responds: “No, it was a weird odor. I don’t cognize precisely however to picture it,” and says helium can't get ahold of anyone to get a gross assignment.

11:24:49 p.m.: The controller confirms determination is nary gross available. He asks the pilot, “Do you inactive request america to nonstop occurrence there?” The aviator says yes, citing the odor.

11:27:44 p.m.: United 2384’s aviator tells the controller helium doesn't program connected evacuating the plane. The controller instructs the aviator to determination to different taxiway.

11:29:54 p.m.: United 2384 makes a incorrect crook and ends up successful a antithetic portion of the taxiway, but the controller doesn't dependable concerned. "You tin conscionable enactment implicit determination … and we’ll person the guys spell implicit there,” helium says.

11:31:41 p.m.: United 2384 declares an emergency. The aviator says: “The formation attendants successful the backmost are feeling sick due to the fact that of the odor. We volition request to spell into immoderate disposable gross astatine this time.”

11:31:59 p.m.: The controller asks again if there’s an disposable gate, telling the idiosyncratic he’s speaking with, “now they’re declaring an emergency. They privation to get out.”

11:33:39 p.m.: The controller tells United 2384 determination is inactive nary unfastened gate, but occurrence trucks are headed implicit with a step motortruck if they privation to evacuate. "Let maine cognize if you do,” helium says.

Flight 8646 is cleared to land

11:34:18 p.m.: In a regular measurement adjacent the extremity of a flight, the aerial postulation controller handling approaches into LaGuardia instructs the pilots of Air Canada Express Flight 8646 pilots to interaction the airport’s power tower, which volition usher them the remainder of the way.

11:35:08 p.m.: Flight 8646 is cleared to onshore connected Runway 4/22.

Fire motortruck is cleared to cross

11:36:45 p.m.: At the airport, a controller asks: “Is determination a conveyance that needed to transverse the runway?”

11:37:00 p.m.: “Truck 1 and company, LaGuardia Tower, requesting to transverse 4 astatine Delta,” the firefighter says, meaning helium is requesting clearance to usage Taxiway D to transverse Runway 4 — the aforesaid runway wherever Flight 8646 is astir to land.

11:37:05 p.m.: “Truck 1 and institution transverse 4 astatine Delta,” the controller says, authorizing the motortruck and different exigency vehicles to transverse Runway 4. Simultaneously, connected a antithetic frequency, the aviator connected the odor-stricken United formation reports that his level has yet been cleared to spell to a gate.

11:37:08 p.m.: “Truck 1 and institution crossing 4 astatine Delta," a firefighter successful Truck 1 repeats, confirming that the controller has cleared the conveyance to cross.

11:37:11 p.m.: An physics telephone retired successful Flight 8646’s cockpit indicates the level is 50 feet supra the ground.

11:37:12 p.m.: A controller tells the aviator of an outbound Frontier Airlines formation to halt connected a taxiway.

Flight 8646 lands and collides with the occurrence truck

11:37:15 p.m.: “Sorry, Truck 1,” a controller says arsenic Flight 8646 bears down connected Runway 4/22.

11:37:16 p.m.: A controller past frantically tells the occurrence crew: “Stop. Stop Stop. Stop. Truck 1. Stop. Stop. Stop. Stop."

11:37:17 p.m.: Flight 8646’s cockpit dependable recorder captures a dependable that investigators accidental is accordant with the plane’s landing cogwheel touching down..

11:37:19 p.m.: Flight 8646's archetypal officer, who was flying the plane, transfers power to the captain.

11:37:20 p.m.: The controller continues, “Stop Truck 1. Stop. Stop Truck 1. Stop.” As helium speaks, an alarm begins to beep.

11:37:25 p.m.: Flight 8646 slams into the occurrence truck. The cockpit dependable signaling stops.

Aftermath

11:37:45 p.m.: A controller tells the aviator of the adjacent level acceptable to onshore to “go around,” meaning helium should support flying alternatively of landing.

The controller past tries to rise the pilots of Flight 8646. "I spot you collided with a conveyance there. Just clasp position. I cognize you can’t move. Vehicles are responding to you now.” Other rescue vehicles contention to the clang site.

11:55:37 p.m.: The aviator of different level tells a controller: “That wasn’t bully to watch." The controller responds: “Yeah, I know. I was present ... We were dealing with an exigency earlier. I messed up.” The aviator says: “Nah, man, you did the champion you could.”

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