CRJ accident at Toronto

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03-20-2025 | 02:26 PM

#721

dera

In a land of unicorns

Joined: Apr 2014

Posts: 7,025

Likes: 40

From: Whale FO

Quote:

Originally Posted by rickair7777

Yes. Negligible power regardless, N1 is not linear to actual power, roughly 50% of your thrust comes after 80% N1.

Not CRJ, but depends on the engine. On the -8 we sometimes take off with 80-82% N1.

03-20-2025 | 02:48 PM

#722

TiredSoul

All is fine at .79

Joined: Sep 2016

Posts: 4,482

Likes: 40

From: Paahlot

Was the FO sent back out on the line?

https://onemileatatime.com/news/delt...dia-go-around/

03-20-2025 | 02:53 PM

#723

dera

In a land of unicorns

Joined: Apr 2014

Posts: 7,025

Likes: 40

From: Whale FO

Quote:

Originally Posted by TiredSoul

Was the FO sent back out on the line?

https://onemileatatime.com/news/delta-crj-900-wing-strike-laguardia-go-around/

Hey, she got the pitch right this time. Just got to work on the bank a little. Halfway there!

(surely not the same FO).

03-20-2025 | 02:55 PM

#724

rickair7777

Prime Minister/Moderator

Joined: Jan 2006

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From: Engines Turn or People Swim

Quote:

Originally Posted by dera

Not CRJ, but depends on the engine. On the -8 we sometimes take off with 80-82% N1.

Different engines will vary slightly of course, but twin-spool subsonic commercial turbofans are all in the same ballpark.

737 can go as low as 85% at our shop.

If you're light, cool day, long runway you can meet climb requirements with a lot less N1/thrust than in other conditions, and doing so saves engine wear.

03-20-2025 | 03:43 PM

#725

Elevation

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Joined: Jul 2017

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Looks like it's exactly what everybody was saying for the video evidence. Sucks for everybody involved. I was hopping by there was some ameliorating detail that we had missed or wasn't captured in video.

03-20-2025 | 04:06 PM

#726

dera

In a land of unicorns

Joined: Apr 2014

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Likes: 40

From: Whale FO

Quote:

Originally Posted by Elevation

It's funny reading back some back and forth from when the video was released. Me and few others got VERY close from watching the videos. I was off by 0.4 seconds on TCH and almost bang on with the sink rate. And the other guys were telling me you can't say anything based on videos alone and "there was clearly a flare" and "this landing didn't look that hard" and "maybe it was irrecoverable windshear" and other clearly impossible scenarios.

I still believe my own eyes when I watch a video.

03-20-2025 | 04:38 PM

#727

VacancyBid

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Joined: Jan 2024

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Quote:

Originally Posted by dera

"this landing didn't look that hard" .

They clearly screwed up.

That said, I can’t think of this happening to an airline flight in the last 40 years. It sure doesn’t look like the worst landing in four decades.

03-20-2025 | 04:41 PM

#728

CGLimits

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Joined: Jan 2016

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Quote:

Originally Posted by dera

Do you want a medal? BigFDeal. My issue with you had more to do with your trying to play NTSB investigator on a public forum with total disregard for the well being of two fellow pilots. Those scenarios were not impossible by the way. You had no way of knowing what was going on in and with the airplane.

03-20-2025 | 04:52 PM

#729

trip

Gets Weekends Off

Joined: Sep 2009

Posts: 2,429

Likes: 14

Quote:

Originally Posted by DeltaboundRedux

Here's the link: Preliminary Weather, recency, flight time hours, flight data, evacuation sequence/efforts, etc. Good read.

Probably going to have to wait a day or so. The website is getting flooded and rejecting queries like a DDOS.

Here's the PDF (good photos)

Here's an interesting video produced by the safety team: Good video summary

Interesting video, so the cockpit door was jammed shut and the crew had to crawl out the escape hatch that was almost blocked as well. Several landings have already been recreated in the SIM, Sounds they'll be looking close at the MLG failure and why the wing detached.

03-20-2025 | 05:25 PM

#730

dera

In a land of unicorns

Joined: Apr 2014

Posts: 7,025

Likes: 40

From: Whale FO

Quote:

Originally Posted by CGLimits

I never said what was going on in and with the airplane.

I simply stated the facts as I saw them from the video. I said it took them 4 seconds from TCH to touchdown, well, it took 3.6 seconds.
I said there was no flare. Fact.
I said there was a right roll. Fact.
I said I wouldn't be surprised to see 20fps sink on the RMLG, the touchdown happened at 18.3fps with increasing right roll, so pretty damn close too.

The fact that I made those posts on "a public forum" made no difference, anyone could watch that video and figure out what happened. I never speculated on the why's, I just stated the what's.

I bet neither pilot went to work that morning thinking "I'm gonna fk some sht up today".
The lessons we'll learn from the final report, whenever it comes out.