Air Canada B737-8 in the grass after landing 06L at YUL
https://www.ctvnews.ca/montreal/article ... l-airport/
https://www.cbc.ca/news/canada/montreal ... -9.7265017
https://www.flightaware.com/live/flight/ACA774
METAR CYUL 091800Z 04006KT 15SM FEW065 OVC120 23/19 A2980 RMK SC2AC6 SLP094 DENSITY ALT 1300FT
SPECI CYUL 091846Z 02006KT 15SM -RA OVC025 23/19 A2980 RMK SC8 SLP093 DENSITY ALT 1200FT
METAR CYUL 091900Z 02004KT 13SM -RA BKN030 OVC120 23/19 A2980 RMK SC7AC1 SLP093 DENSITY ALT 1200FT
METAR CYUL 092000Z 36004KT 320V020 15SM -RA BKN050 OVC070 22/20 A2980 RMK SC6AC2 SLP092 DENSITY ALT 1200FT
LiveATC Audio
https://vocaroo.com/1a2ADHS9o47b
Air Canada B737-8 in the grass at YUL
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Eric Janson
- Rank (9)
- Posts: 1482
- Joined: Thu Feb 08, 2007 10:44 am
Re: Air Canada B737-8 in the grass at YUL
Video shows the aircraft exiting the runway at a very high speed.
After long dry periods rubber deposits can make things very slippery when it rains.
Braking action in the TDZs can be almost non existent.
There is no rush to vacate - slow down or take the next exit. Especially on wet/contaminated surfaces.
After long dry periods rubber deposits can make things very slippery when it rains.
Braking action in the TDZs can be almost non existent.
There is no rush to vacate - slow down or take the next exit. Especially on wet/contaminated surfaces.
Always fly a stable approach - it's the only stability you'll find in this business
Re: Air Canada B737-8 in the grass at YUL
Having flown on said airline many times into my home airport over the years, there have been plenty of times where loads of braking was applied on one of the ruways(used about 20% of the time) to make a 90 degree turnoff because the next exit is quite a bit further along and requires more taxi-back. Just exit at a comfortable pace. Sometimes, I have heard a bunch of items fall onto the floor.Eric Janson wrote: ↑Thu Jul 09, 2026 11:50 pm Video shows the aircraft exiting the runway at a very high speed.
After long dry periods rubber deposits can make things very slippery when it rains.
Braking action in the TDZs can be almost non existent.
There is no rush to vacate - slow down or take the next exit. Especially on wet/contaminated surfaces.
Montreal has not likely had a long dry period this year.
Re: Air Canada B737-8 in the grass at YUL
Seems that T/R is engaged above idle while exiting on the high speed (you can see the spray forward of the nacelles).
On a dry runway/exit - there is a speed limit for a high speed exit. On a wet runway/exit that speed limit would clearly be reduced by half or more. That particular exit has two subsequent sharp turns to the right. Most AOM would specify 10kts on dry and 5kts on wet for those turns.
All of the FDR data will be available plus pilot debrief. Still curious how they ended up where they ended up. Looks like southeast of taxi B at B3 just opposite AC hangar.
On a dry runway/exit - there is a speed limit for a high speed exit. On a wet runway/exit that speed limit would clearly be reduced by half or more. That particular exit has two subsequent sharp turns to the right. Most AOM would specify 10kts on dry and 5kts on wet for those turns.
All of the FDR data will be available plus pilot debrief. Still curious how they ended up where they ended up. Looks like southeast of taxi B at B3 just opposite AC hangar.
Re: Air Canada B737-8 in the grass at YUL
What's Air Canada's SOP regarding transfer of control between PF (FO) and CPN on the rollout ?
Re: Air Canada B737-8 in the grass at YUL
They probably didn't account for the 9x the sqrt of tire pressure. What rookies. Probably faked their ATPL. 
Naw, I don't buy any hydroplaning or related runway issue. If that was the cause in such light rain and wind it would be happening all the time at YUL.
Something else had to have happened. There's a little bit of visual ambiguity on the exit at B3 now from they way B2 enters between B1 and B3.
B3 can be a quick-ish turnoff, especially in the wet with no headwind. Often doable but could assume you'd roll out to B5 in those conditions. Perhaps they started the high speed turnoff and realized they were screwing it up. Other options are some sort of failure since it's a Boeing, and lastly and most unlikely, water bottle or something rolled under the rudder after braking.
My money is on misjudging the exit speed or turn while attempting B3. Curious to hear the outcome of this one.
Naw, I don't buy any hydroplaning or related runway issue. If that was the cause in such light rain and wind it would be happening all the time at YUL.
Something else had to have happened. There's a little bit of visual ambiguity on the exit at B3 now from they way B2 enters between B1 and B3.
B3 can be a quick-ish turnoff, especially in the wet with no headwind. Often doable but could assume you'd roll out to B5 in those conditions. Perhaps they started the high speed turnoff and realized they were screwing it up. Other options are some sort of failure since it's a Boeing, and lastly and most unlikely, water bottle or something rolled under the rudder after braking.
My money is on misjudging the exit speed or turn while attempting B3. Curious to hear the outcome of this one.
Re: Air Canada B737-8 in the grass at YUL
I'm not on the max. But the SOP is generally "captains taxi" without a specific ground speed assigned to one or the other. I'm not sure if the max even has a tiller on the FOs side.. everything else does have a tiller (maybe not the 220 - not sure).
In any regards leaving the high speed on a wet runway on a 737.. it's likely the CA was driving.
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Blackdog0301
- Rank 4
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- Joined: Thu Aug 24, 2017 3:15 pm
Re: Air Canada B737-8 in the grass at YUL
Totally avoidable. This is 100% on the crew. Flightradar shows them leaving the centerline for the highspeed at 55 knots, and continued at 55 knots for another 400ish feet before the ground speed started decreasing again. They stopped braking. What were they thinking?!
Re: Air Canada B737-8 in the grass at YUL
The things we do trying to save 1 minute of taxi?
Re: Air Canada B737-8 in the grass at YUL
No tiller on the F/O side. The 737’s front tires skid far easier than any other jet I’ve flown if you are going too fast. Not saying that’s what happened. Just saying it doesn’t like to turn if it’s going quickly and on slippery conditions.
