Landing a CRJ in Toronto

I wrote about my experience landing a Canadair Regional Jet in Toronto (July 2013):

On week after I completed IOE I was assigned to fly with a young recently upgraded captain to Toronto. I had about 75 hours of experience at this point during one month of flying the CRJ. The Tower cleared us to land on runway 33R. I had the plane set up perfectly. We were 3-4 miles from the runway and descending in a stable configuration. Then the Tower controller changed his mind: “Cancel landing clearance. You’re now cleared to land Runway 33L.” This is a shorter runway that starts about 2000′ farther away than 33R and also requires a horizontal sidestep of about 3500′. I would have to add some power and maneuver the airplane to line up with the other runway.

A good CRJ pilot would have added exactly the right amount of thrust so that it wouldn’t be necessary to touch the levers again until 50′ above the ground when it was time to pull them back to idle. How did I handle the situation? I added too much power. Then I took some back out. Then I had to add some back in. Then I finally got us stabilized close to the 500′ above-the-ground minimum altitude that our company rules called for (if not stable at 500′ in visual conditions, go around; if not stable at 1000′ in instrument conditions, go around). After we’d pulled off the runway and cleaned up the plane I said “That was so embarrassing. I feel like I should mail my ATP certificate back to the FAA.” The captain replied with one of the wisest and kindest things that anyone has ever said to me: “Nobody was born knowing how to fly a 53,000 lb. jet.”

Conditions were more challenging today, I’m sure, and the results were worse than even my weak effort (ABC):

Friends have been asking me how this could have happened. flightradar24 has some good info, especially the weather report (METAR):

CYYZ 171900Z 27028G35KT 6SM R24L/3000VP6000FT/U BLSN BKN034 M09/M14 A2993 RMK CU6 SLP149

The same article says that the plane was landing on runway 23 (magnetic heading 237, which is about 227 degrees true heading in that part of the world). The METAR says that the wind was from 270 (true), a 40-degree cross-wind (works out to nearly 20 knots of crosswind). The wind was blowing at 28 knots gusting 35 knots, which is a recipe for bumps. The visibility is said to be 6 statute miles, which is inconsistent with the “runway visual range” (RVR) of only 3000-6000 ft (1/2-1 mile) in blowing snow (BLSN). Maybe the explanation is that the visibility was quite good except near the surface where the strong wind was blowing accumulated snow around. Temperature was -9C. The clouds didn’t begin until 3400′ above the runway and, therefore, instrument flying didn’t play a role in this unfortunate event.

Various American media outlets have been highlighted on X for blaming Donald Trump, which seems far-fetched given that it was a Canadian-built airplane landing at a Canadian airport.

How could the plane flip over? It can’t be wake turbulence from another aircraft because a strong wind will blow the wake turbulence clear of the final approach course and runways.

Based on the detachment of both wings, my guess at this point is that the plane began to slide sideways on the runway, caught on a pavement imperfection, and flipped over as a car might. Maintaining directional control on the runway at higher speeds is done primarily with the rudder (operated by the same pedals that operate the nosewheel steering). In other words, steering is accomplished via an aerodynamic mechanism even if the wheels are rolling on the runway. Beginner pilots are prone to forgot to keep steering with rudder after the wheels touch. They think that the flight is over and now it is time to relax, even though their Cessna or Cirrus is still going more than 60 knots, possibly with a strong tendency to head for a side edge of the runway. Airline crews, of course, will be much less prone to this human frailty, but the CRJ900 lands at around 130 knots and that makes directional control more challenging. Poor visibility from blowing snow certainly wouldn’t help. The only thing that the CRJ has going for it compared to the trainer aircraft in this situation is that a 20-knot crosswind (see above) is a smaller percentage of a 130-knot forward speed than it is of a 60-knot forward speed.

[Update: video has emerged of a hard landing, maybe hard enough to snap off one of the main (under-wing) landing gears, which would certainly start the plane in a sideways direction. Why would the plane come down rapidly? Gusty winds could be a factor. If a strong headwind suddenly shifts to a tailwind, for example, the plane loses a lot of airspeed instantly and, below a certain speed, the aircraft becomes less efficient as it gets slower. (Below the stall speed, the aircraft mostly stops flying and, therefore, will sink like a rock.) Given a long runway, pilots can usually deal with this possibility by choosing to fly at a higher-than-standard approach speed (add half the gust factor is the conventional formula) and, also, the standard approach speed provides a significant margin over stall.]

The flight attendants are today’s heroes, certainly, for getting everyone out!

Our wind limitations from a smaller earlier version of the CRJ:

(It would have been a 27-knot crosswind limitation, I think, given the runway conditions being reported by the control tower. Below the chart there is a note saying that reported gusts are to be ignored in determining whether a limitation will be exceeded.)

Here are some flashcards for the CRJ900 from Endeavor:

Technically, this may have been a “dry” runway and, therefore, the reported crosswind was less than the 32-knot limit. On the other hand, reports might not have matched the reality for directional control.

(One confusing element of our life with the CRJ was that wet runways were actually considered “dry” so long as the runway was grooved.)