Chartright Citation Aircraft Upset

[pelmet]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....


C-FYMM, a Chartright Air Inc. Cessna 560 Encore was conducting flight HRT705 from
Toronto/Lester B. Pearson Intl. (CYYZ), ON to Fort Lauderdale Exec Airport (KFXE), FL. During
flight over Canadian territory, the left engine cowlings detached resulting in loss of control and
aircraft upset. After significant altitude loss, the flight crew regained control, declared an
emergency and diverted to Buffalo/Niagara Intl (KBUF), NY. A partial portion of the lower cowl fell
from the aircraft after landing. The remaining cowl sections were missing from the aircraft and have
not been located. The aircraft received damage to sections of the aft fuselage and the horizontal
stabilizer.

[fish4life]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....


C-FYMM, a Chartright Air Inc. Cessna 560 Encore was conducting flight HRT705 from
Toronto/Lester B. Pearson Intl. (CYYZ), ON to Fort Lauderdale Exec Airport (KFXE), FL. During
flight over Canadian territory, the left engine cowlings detached resulting in loss of control and
aircraft upset. After significant altitude loss, the flight crew regained control, declared an
emergency and diverted to Buffalo/Niagara Intl (KBUF), NY. A partial portion of the lower cowl fell
from the aircraft after landing. The remaining cowl sections were missing from the aircraft and have
not been located. The aircraft received damage to sections of the aft fuselage and the horizontal
stabilizer.

Ride a motorcycle on the highway then take a sheet of 2x2 and hold it out quickly with one hand. I’d bet you’d get messed up quickly.
Think about the amount of yaw a small movement of rudder gives now imagine how much a big piece of cowl further from
The centreline of the aircraft (more moment) would have as it grabs the wind.

[pelmet]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....


C-FYMM, a Chartright Air Inc. Cessna 560 Encore was conducting flight HRT705 from
Toronto/Lester B. Pearson Intl. (CYYZ), ON to Fort Lauderdale Exec Airport (KFXE), FL. During
flight over Canadian territory, the left engine cowlings detached resulting in loss of control and
aircraft upset. After significant altitude loss, the flight crew regained control, declared an
emergency and diverted to Buffalo/Niagara Intl (KBUF), NY. A partial portion of the lower cowl fell
from the aircraft after landing. The remaining cowl sections were missing from the aircraft and have
not been located. The aircraft received damage to sections of the aft fuselage and the horizontal
stabilizer.

Ride a motorcycle on the highway then take a sheet of 2x2 and hold it out quickly with one hand. I’d bet you’d get messed up quickly.
Think about the amount of yaw a small movement of rudder gives now imagine how much a big piece of cowl further from
The centreline of the aircraft (more moment) would have as it grabs the wind.

I believe I saw a class 3 level investigation, so I expect some further detail will be published.

[Found]

Sounds like the cowls were not secured before the flight, not the first time this has happened to an airplane and unfortunately won’t be the last.

[pelmet]

Sounds like the cowls were not secured before the flight, not the first time this has happened to an airplane and unfortunately won’t be the last.

Always a good thing to check to the best of reasonable possibility on a walk around. Of course on many types, it is not reasonably possible.

[thepoors]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....

Cowl wrapped itself around the horizontal stab. Basically like having a bucket thrust reverser deploy in flight. Caused uncontrolled pitch up into a stall. Loss of airflow allowed the cowl to come off the stab. Crew then recovered from the stall.

[YC87DRVR]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....

Cowl wrapped itself around the horizontal stab. Basically like having a bucket thrust reverser deploy in flight. Caused uncontrolled pitch up into a stall. Loss of airflow allowed the cowl to come off the stab. Crew then recovered from the stall.

Wow.

Well done by the crew.

[rookiepilot]

Amazing.

[pelmet]

Aircraft did not pitch up or stall.

Adsb data shows a rather more terrifying possibility - it rolled over inverted and lost 12,000 feet in less than 2 minutes. It loses nearly 2000 in the first 16 seconds and gains 56 knots.

Liveatc audio shows the crew saying they can't maintain altitude on the way into Buffalo. They have to go around once on the approach due to control issues and on the second approach, ATC is warning them they are at 1800 feet on the localizer when min altitude is 2300 and they are setting off her ground proximity warning system.

Hell of a job by the crew to bring it in safe.

Any link to LiveATC for us?

[fish4life]

This seems like the kind of incident that a completely automated flight system eg pilotless would have struggled with because it would have never been programmed for. Great job to the crew.

[digits_]

This seems like the kind of incident that a completely automated flight system eg pilotless would have struggled with because it would have never been programmed for. Great job to the crew.

Why would it never have been programmed? It stands to reason that when developing a full automatic pilot, that one would go through all available accident/incident reports and make sure all these situations could be handled.

And even if there's something new, the basic rules of flying didn't change: push and pull still work, left and right are still correct as well.

[Bug_Stomper_01]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....


C-FYMM, a Chartright Air Inc. Cessna 560 Encore was conducting flight HRT705 from
Toronto/Lester B. Pearson Intl. (CYYZ), ON to Fort Lauderdale Exec Airport (KFXE), FL. During
flight over Canadian territory, the left engine cowlings detached resulting in loss of control and
aircraft upset. After significant altitude loss, the flight crew regained control, declared an
emergency and diverted to Buffalo/Niagara Intl (KBUF), NY. A partial portion of the lower cowl fell
from the aircraft after landing. The remaining cowl sections were missing from the aircraft and have
not been located. The aircraft received damage to sections of the aft fuselage and the horizontal
stabilizer.

Ride a motorcycle on the highway then take a sheet of 2x2 and hold it out quickly with one hand. I’d bet you’d get messed up quickly.
Think about the amount of yaw a small movement of rudder gives now imagine how much a big piece of cowl further from
The centreline of the aircraft (more moment) would have as it grabs the wind.

I believe I saw a class 3 level investigation, so I expect some further detail will be published.

Where’d you see that?

[pelmet]

Ride a motorcycle on the highway then take a sheet of 2x2 and hold it out quickly with one hand. I’d bet you’d get messed up quickly.
Think about the amount of yaw a small movement of rudder gives now imagine how much a big piece of cowl further from
The centreline of the aircraft (more moment) would have as it grabs the wind.

I believe I saw a class 3 level investigation, so I expect some further detail will be published.

Where’d you see that?

It was mentioned with the report I quoted.

[Bug_Stomper_01]

I believe I saw a class 3 level investigation, so I expect some further detail will be published.

Where’d you see that?

It was mentioned with the report I quoted.

I found this, nothing on tsb investigations I could see.

https://aviation-safety.net/database/re ... 20230127-2

[pelmet]

Where’d you see that?

It was mentioned with the report I quoted.

I found this, nothing on tsb investigations I could see.

https://aviation-safety.net/database/re ... 20230127-2

Like me, Aviation-safety.net did include this information.

[Bug_Stomper_01]

It was mentioned with the report I quoted.

I found this, nothing on tsb investigations I could see.

https://aviation-safety.net/database/re ... 20230127-2

Like me, Aviation-safety.net did include this information.

Took me a second for the registration, I remember that aircraft, it’s one of the old Syncrude machines.

[Bug_Stomper_01]

It was mentioned with the report I quoted.

I found this, nothing on tsb investigations I could see.

https://aviation-safety.net/database/re ... 20230127-2

Like me, Aviation-safety.net did include this information.

Here’s what is published regarding this incident on CADORS.

https://wwwapps.tc.gc.ca/saf-sec-sur/2/ ... d2023O0509

[Bug_Stomper_01]

Sounds like the cowls were not secured before the flight, not the first time this has happened to an airplane and unfortunately won’t be the last.

Yep, must have been missed, I’m sure there was some stress from the last guy that signed work for that machine

[Bug_Stomper_01]

Interesting how a loss of a cowl led to an upset. Would be interested in how that came to be.....


C-FYMM, a Chartright Air Inc. Cessna 560 Encore was conducting flight HRT705 from
Toronto/Lester B. Pearson Intl. (CYYZ), ON to Fort Lauderdale Exec Airport (KFXE), FL. During
flight over Canadian territory, the left engine cowlings detached resulting in loss of control and
aircraft upset. After significant altitude loss, the flight crew regained control, declared an
emergency and diverted to Buffalo/Niagara Intl (KBUF), NY. A partial portion of the lower cowl fell
from the aircraft after landing. The remaining cowl sections were missing from the aircraft and have
not been located. The aircraft received damage to sections of the aft fuselage and the horizontal
stabilizer.

Ride a motorcycle on the highway then take a sheet of 2x2 and hold it out quickly with one hand. I’d bet you’d get messed up quickly.
Think about the amount of yaw a small movement of rudder gives now imagine how much a big piece of cowl further from
The centreline of the aircraft (more moment) would have as it grabs the wind.

I believe I saw a class 3 level investigation, so I expect some further detail will be published.

Correct, I was just browsing and it’s almost at the top of the list

https://www.tsb.gc.ca/eng/enquetes-inve ... o0008.html