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-   -   Pegasus Airlines Boeing 737-800 TC-CPF overrun runway at Trabzon. All pax okay (https://www.pprune.org/rumours-news/604167-pegasus-airlines-boeing-737-800-tc-cpf-overrun-runway-trabzon-all-pax-okay.html)

HundredPercentPlease 14th Jan 2018 14:07


Originally Posted by Avenger (Post 10019434)
The skid mark clearly shows the LH wheels were locked up at the point it departed.... (snip)

These remarkably humanoid "skid marks"?

http://i66.tinypic.com/dgtqg.jpg

turker339 14th Jan 2018 14:13

Hydroplaning a la TAM 3054?

HundredPercentPlease 14th Jan 2018 14:14

Landing video, allegedly:


OPENDOOR 14th Jan 2018 14:17


Something caused the aircraft to suddenly swing left 35/45 degrees. The port wheels skid mark show the aircraft was travelling in a straight line when the wheels locked up for a short distance then rotated again before crossing the runway edge, which skid mark free. I suspect there might have been a problem with the nose-wheel steering. For the captain's sake I hope so.
Would starboard gear brake failure plus port side ABS activating account for the marks?

B2N2 14th Jan 2018 14:23

Accidents rarely have a singular cause.
I’m going with WX at or slightly below mins, continue because of ground contact. ( I’ve never done that )
Slightly long landing ( never done that)
Slightly fast ( never done that)
Left reverser slow in stowing, wet 1000’ touchdown zone marker caused anti skid to cycle.
Pilot flying jabbed the brakes ( never done that either) and left they went.
I’ve had the anti skid cycle pretty aggressively crossing an intersecting runway after landing and one wheel went over the (wet from precip) centerline stripe and lost friction.
Anyway...my theory.

4runner 14th Jan 2018 14:24

P2F “cadets” and Turkish astronauts?

pilotguy1222 14th Jan 2018 15:00

This is the type of events that we will see (hopefully) at the end of this.

I feel it will be something more along the lines of an inadvertent power application. Either with forward thrust before both reversers were stowed, or asymmetrical thrust on the reversers.
The left turn is almost immediately after the td zone marking. Slippery when wet ( what B2N2 said)

Glad everyone was able to get out safe.

Heathrow Harry 14th Jan 2018 15:32

"Cabin crew and services did a good job."

Superb jon TBH - amazing when you look at the angle plus the lack of outside lights etc etc

As we've said on the 2017 safety thread the line between a no-one killed and a dreadful disaster is often very thin - and this is about as close as it gets.

Mikter 14th Jan 2018 15:35

My first post after lurking a long time ... where's the skid track of the nosewheel? If it's co-incident with either of the MLG tracks it must have been at a very odd angle. Airbourne?

GChopperP 14th Jan 2018 15:42

Heard it might have been a bird strike, anyone confirm?

Kulverstukas 14th Jan 2018 15:55


Originally Posted by HundredPercentPlease (Post 10019445)
Landing video, allegedly:

Landing, cabin video, evacuation etc


finfly1 14th Jan 2018 16:04

Any videos of the actual evacuation itself would be interesting, as it looks "challenging".

Again as I watch the video, I wonder why they don't turn off their strobes and emergency flashers once they are set at the scene. I would think their use would be distracting and disorienting for both rescuers and passengers.

Avenger 14th Jan 2018 16:14

This is Turkey and I doubt the detailed investigation will ever surface beyond the desk top.

gearlever 14th Jan 2018 16:36

Turkey is one of the few states who don't follow ICAO regs to publish Incidents and Accidents Reports.

gums 14th Jan 2018 16:47

I would not rule out a no-kidding locked wheel due to a mechanical problem with the hydraulic brake actuators/cylinders, having had it happen to me.

Jet had been written up for anti-skid problems, but the real problem was the brake actuator(s). I had a bad habit of lightly tapping the brakes shortly after touch because I ran off the end one night and after that always wanted to make sure I had brakes. So the right main locked up at about 120 or 130 knots, ground off the tire and part of wheel assembly. Heh, quite a show for the tower folks and others.

The brake actuator(s) on that wheel never released due to a mechanical problem they discovered later. As someone mentioned, at high speeds rudder was effective, and then nosewheel steering for final few knots.

So a sudden lock up could be a big surprise, especially when about to use that turnaround pad. And they may have been well to the left of centerline getting ready for that 180 turn. So I am cutting the crew some serious slack.

Chesty Morgan 14th Jan 2018 16:59

Dispatched with one of the reversers inop.

misd-agin 14th Jan 2018 17:12

Most common observed acceleration on landing - rapid cancellation of reverse thrust while N1 is still above idle N1.

Abrupt cancellation of auto braking, followed by rapidly releasing that brake pressure, also feels like acceleration.

SamYeager 14th Jan 2018 18:17


Originally Posted by edmundronald (Post 10019365)
The voice recorder in this one will be really interesting.


What's the betting the breaker wasn't pulled and it's been overwritten?

gearlever 14th Jan 2018 18:23

Turkish plane involved in an accident in Turkey....
CVR and FDR never ever will be published.

DaveReidUK 14th Jan 2018 18:44


Originally Posted by SamYeager (Post 10019670)
What's the betting the breaker wasn't pulled and it's been overwritten?

By subsequent sectors, you mean?


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