Turkish Airlines cargo 747 crashes in Kyrgyzstan
 

Dreadful news.

https://pbs.twimg.com/media/C2Qyw2_UsAAoyCn.jpg:large

B-747-400F(SCD), reg. TC-MCL, operating flight Turkish TK6491 HKG-FRU.


METARs (the crash happened at 0119-0120 UTC):

UCFM 160100Z VRB01MPS 0050 R26/300N FZFG VV001 M09/M10 Q1023 R26/19//60 NOSIG
UCFM 160130Z VRB01MPS 0150 R26/550 FZFG VV001 M09/M10 Q1024 R26/19//60 NOSIG

Death toll now reported as 30. Crew of 4 on board.

http://sptnkne.ws/dqr7

It's not Turkish Airlines cargo plane, but was a wet lease from ACT Airlines, aka My Cargo Airlines.

First glance at the FR24 data indicates a possible overrun after touching down on the runway. Looks like they were lined up on runway 26:

https://www.flightradar24.com/data/f...k6491/#c2d9d64

Reuters article on the crash. Turkish cargo jet crash kills at least 30 in Kyrgyzstan

Well from the pictures it would have a been a hell of an overrun... But at this stage I guess anything is possible.

Crash
 

Looks like the rescue operation is pretty much still ongoing. It looks like they crashed past the rwy on the north side, https://www.google.co.uk/maps/place/...1!4d74.4364417


SA 16/01/2017 06:30->
METAR COR UCFM 160630Z VRB01MPS 0500 R26/0550N FZFG VV002
M08/M09 Q1022 R26/19//60 NOSIG=
SA 16/01/2017 06:00->
METAR UCFM 160600Z VRB01MPS 0350 R26/0400N FZFG VV001 M08/M10
Q1023 R26/19//60 NOSIG=
SA 16/01/2017 05:30->
METAR UCFM 160530Z 00000MPS 0250 R26/0300N FZFG VV001 M08/M09
Q1023 R26/19//60 NOSIG=
SA 16/01/2017 05:00->
METAR UCFM 160500Z 00000MPS 0200 R26/0250N FZFG VV001 M08/M09
Q1023 R26/19//60 NOSIG=
SA 16/01/2017 04:30->
METAR UCFM 160430Z 00000MPS 0150 R26/0200N FZFG VV001 M09/M10
Q1023 R26/19//60 NOSIG=
SA 16/01/2017 04:00->
METAR UCFM 160400Z VRB01MPS 0150 R26/0175N FZFG VV001 M09/M10
Q1024 R26/19//60 NOSIG=
SA 16/01/2017 03:30->
METAR UCFM 160330Z VRB01MPS 0100 R26/0150N FZFG VV001 M09/M10
Q1024 R26/19//60 NOSIG=
SA 16/01/2017 03:00->
METAR UCFM 160300Z VRB01MPS 0100 R26/0150N FZFG VV001 M09/M10
Q1024 R26/19//60 NOSIG=
SA 16/01/2017 02:30->
METAR UCFM 160230Z VRB01MPS 0100 R26/0250N FZFG VV001 M09/M10
Q1024 R26/19//60 NOSIG=
SA 16/01/2017 02:00->
METAR UCFM 160200Z VRB01MPS 0150 R26/0375N FZFG VV001 M09/M11
Q1024 R26/19//60 TEMPO 0100 FZFG=

Wx in that region in winter has taken many lives in the past. Although it looks right on the numbers for CAT2 ILS RW26.

The data on FR24 looks pretty solid to me. I don't think those houses were on the runway and the village they hit is indeed west of the airport.

A decelerating descent on the glide is depicted but the groundspeed seems high with the last data point at 162 knots at 0116Z. This seems to correlate with the last point on the FlightAware plot giving 165 knots a few seconds earlier:

Flight Track Log THY6491 16-Jan-2017 HKG / VHHH - FRU / UCFM FlightAware

Though at the 162 kt point they still had about half of Bishkek's 14,000 ft/4,200 m runway ahead of them, and were around 3,000 m from the nearest habitation.

Clearly there's more to the story than is apparent from the FR24/FlightAware data.

Cold WX may be a casual factor
 

Flight tracking data, if correct, indicates A/C platformed at 3100', Jep chart states 3400'.
M09 ~ 10% diff ~= 300'
Just an observation of the published data.

Could you please explain this?
Regards.

Local authorities said that it overfly RWY, then hit the fence and crashed at the houses. Also was said that pilot managed to get out but died on the way to hospital. Death toll now is about 31 and nine body parts found...

Cold weather correction for altitude

Rule of thumb -10c add 10% altitude to your altimeter for your real altitude.
In short in cold weather your indicated altitude is always higher then you really are.

You mean the other way around!! :uhoh:

Your true altitude (height) is lower then the indicated.
Remember: cold=dangerous

FR24 will be showing uncorrected Mode C data. (encoded alt based on 1013)

QNH was 1023/1024 according to the METARs.
30 ft/HPa
So 300 ft sounds about right.

Cold WX corr
 

http://http://code7700.com/altimeter_temperature_correction.html

Review first image for picturial explanation.

However this platform ALT diff has now been explained by the previous post by bekolblockage. FlightAware altitude data is based on 1013mb.

How is Cold Weather Altitude Correction going to make any difference on an ILS CAT II approach? Altitude correction would be done for FAF, MAA, DA and MSA!

Captain İbrahim Gurcan Dirancı, FO Kazım Öndül
Loading masters Melih Aslan and Ihsan Koca.

Let's all please hope this is not yet another botched go-around.
Autopilots don't botch them, human pilots can though. Watch
what unfolds as they investigate.
In the meantime, terrible horror for a lovely village.

I don't think it's a good idea to post the names of the crew

Drone video puts the end of debris area here https://www.google.com/maps/place/43...81!4d74.434629

This place is visible in Drone video @ https://youtu.be/qwKZdWMgVUY?t=2m28s

No problem if it's already released in the public domain. You have to remember that many countries, especially in that part of the world, have different cultures to ours.

It's already released in Turkish media. It's also stressed that FO was retired forces pilot, served till 2009 in Afghanistan.

Kulverstukas: Thanks (as usual) for your contributions already to this thread.

https://cdn.aviaforum.ru/images/2017...c7029cc667.jpg

From another point.

And looks like its not airfield fence but NDB/VOR fence:

https://yandex.ru/maps/-/CZXgqQK9
or https://goo.gl/maps/QamxfrwGNDC2

Shoot from North to SE direction

Aviation Herald:

Very often FR24 lands you on a parallel non existent runway or hundreds of meters after or before

Only for a small minority of aircraft that don't have GPS-powered ADS-B.

Not relevant here.

FR24 is notoriously unreliable, attempting to investigate what happened based upon data that (in many cases) is extrapolated or interpolated is just silly.

One of three recorders found.

As much fun as FR24 is to play with, it's far from perfect. For instance, I've just had an A320 land in my back garden :o

Just commenting that FR24 is not accurate and relies on interpolation -

Yes
 

Exactly you are right!

Parallels are being drawn here with the recent botched 777 go-around at DXB....

I do have my doubts. The Cat II minima for FRU26 in my docs says 350M RVR and RA99'. At the point of deciding to GA and announcing 'Go-Around Flaps 20' the aircraft should have been in a perfect position to land and just short of threshold. The DXB issue of the Boeing TOGA mode becoming unavailable is only after touchdown so that issue should not come into play here.

If however the suggestion is that this aircraft did GA from minima without applying any power then it seems to have flown an unbelievably long distance (4000m runway plus another ~2000m upwind) before it stalled into the ground. I simply don't buy the idea.

There is another possibility - The NGFMC in the 744 generates the characteristic speeds when VNAV selected on the GA... It is also unbelievably unreliable being prone to failures giving inappropriate speed generation and/or complete loss of Autothrottle/VNAV/LNAV functions. Not at all what a tired crew needs going round from a Cat II approach with ****ty weather on minimums.

Itsa question i have raised before but there have been a lot of 747F crashes compared to the vastly more numerous pax versions. Is it something to do with freight operations-less experienced less capable crew ?? Less well maintained aircraft, greater crew fatigue ?