Sukhoi Superjet off runway at KEF
Thread Starter
It will be interesting to see what the investigation uncovers about the landing, the airplane is resting close to the end of runway 11, so it must have skidded between 2000-2500m assuming initial touchdown in the normal touchdown area. Isn't that rather a long skid for a light jet like this?
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My first guess is that this was a case of pilots forgetting about the landing gear. There were no radio transmissions from them about issues with the landing gear and clearly from photos the nose gear is retracted. If this is confirmed than we have another case of a Russian test pilot crashing a perfectly good plane. 
Last edited by olasek; 22nd Jul 2013 at 21:56.
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The crosswind tests may well have included a flapless landing. There would be no audible gear warning signal in such a configuration. If the landing checks are rushed or interrupted and no one spots the three reds then bingo.
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The crosswind tests may well have included a flapless landing. There would be no audible gear warning signal in such a configuration. If the landing checks are rushed or interrupted and no one spots the three reds then bingo.
The airplane is already certified and being delivered, but Low vis certification is ongoing. Somehow I doubt that a flapless landing is part of that, but partial flaps certainly probably as a part of a single engine (idling) approach.
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It will be interesting to see what the investigation uncovers about the landing, the airplane is resting close to the end of runway 11, so it must have skidded between 2000-2500m assuming initial touchdown in the normal touchdown area. Isn't that rather a long skid for a light jet like this?
Doing touch and gos were they?
"Go Around! Flaps!"
"Oh b@gger, that was the gear handle"...puts them right about there?
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Gear-up Superjet crew had requested touch-and-go
...Pilots of a Sukhoi Superjet 100 test aircraft had requested to execute a touch-and-go manoeuvre shortly before a gear-up accident at Reykjavik's Keflavik airport...Both flight recorders have been retrieved and, although a final decision has yet to be taken, Gudmundsson says they will "most likely" be sent to Moscow's Interstate Aviation Committee for data download...
I have heard that gears were down and then they retracted them at the beginning of a climb. But maybe because of combination of a wind and lately increased power of the only engine, the plane dropped back to RWY and belly landed. They suppose human factor...
...Pilots of a Sukhoi Superjet 100 test aircraft had requested to execute a touch-and-go manoeuvre shortly before a gear-up accident at Reykjavik's Keflavik airport...Both flight recorders have been retrieved and, although a final decision has yet to be taken, Gudmundsson says they will "most likely" be sent to Moscow's Interstate Aviation Committee for data download...
I have heard that gears were down and then they retracted them at the beginning of a climb. But maybe because of combination of a wind and lately increased power of the only engine, the plane dropped back to RWY and belly landed. They suppose human factor...
Last edited by Karel_x; 25th Jul 2013 at 22:18.
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Somehow that does not sound very plausible Karel_x
Игорь Виноградов, первый вице-президент ЗА "ГСС" по качеству и сертификации, об авиационном инциденте в Исландии:
"Самолёт заходил на посадку с выпущенными шасси, потом переломил траекторию и пошел на второй круг. Естественно, шасси стали убирать. В этот момент и произошел инцидент. Шасси и самолёт сработали абсолютно штатно".
"Самолёт заходил на посадку с выпущенными шасси, потом переломил траекторию и пошел на второй круг. Естественно, шасси стали убирать. В этот момент и произошел инцидент. Шасси и самолёт сработали абсолютно штатно".
Igor Vinogradov, the first vice president of Sukhoi Civil Aircrafts, responsible for quality and certification, told about the Island incident:
"The aircraft had gears down on the final, then it changed its trajectory and went for go-around. Of cause it start to retract gears. In this very moment the incident happens. Both the gears and the aircraft work properly."
Source: Interview for Finam FM radio, time 18:30++
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Last edited by Karel_x; 26th Jul 2013 at 08:32.
Thread Starter
If so, that begs the question, what happened to:
"POSITIVE RATE - GEAR UP?
A TWR controller at KEF told me that it appeared that once the aircraft touched, they tried to get it airborne again (without the gears), hence the distance it travelled (about 2500m) before it came to rest about 20 m off the end of the runway.
But the report will tell.
"POSITIVE RATE - GEAR UP?
A TWR controller at KEF told me that it appeared that once the aircraft touched, they tried to get it airborne again (without the gears), hence the distance it travelled (about 2500m) before it came to rest about 20 m off the end of the runway.
But the report will tell.
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The interview is ca 15 minutes long and Igor Vinogradov told a hint that now they are interesting about position of thrust lever. He told that engine followed thrust lever correctly, but now they investigate if pilots set it to correct position. After direct question of journalist he refused technical problems of undercartridges or engines and/or any other system of a/c and he speculated about a human factor. He also told about a wind change.
Last edited by Karel_x; 26th Jul 2013 at 12:15.
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This has been posted on the Transport Accident Investigation Board website:
"On Sunday morning July 21st at 05:23 AM, Sukhoi Superjet 100 of Russian experimental registry 97005 was performing a certification test flight under cross wind condition at RWY 11 on Keflavik Airport (BIKF), Iceland. The purpose, prior to the event, was to perform a low pass/missed approach with one engine shut down, close to the airplane‘s maximum weight limit, in cross wind condition. During the approach and the low pass, the landing gears were in down position. During the go-around procedure, and after the landing gears were retracted, the airplane decented with the result of landing at the RWY with the landing gears up. The aircraft skidded down the runway and stopped outside the end of the runway. There were 5 persons on board the flight. One person was injured during the accident. The accident is being investigated by the Icelandic Transportation Accident Investigation Board. The Russian Federation has appointed an Accredited Representative to the Investigation. The Air Accident Investigation Commission in Russia will also participate to the investigation."
Source: Sukhoi Superjet 100 Aircraft Accident on Keflavik Airport on July 21st 2013 | Fréttir | Rannsóknarnefnd samgönguslysa - Flugslys
"On Sunday morning July 21st at 05:23 AM, Sukhoi Superjet 100 of Russian experimental registry 97005 was performing a certification test flight under cross wind condition at RWY 11 on Keflavik Airport (BIKF), Iceland. The purpose, prior to the event, was to perform a low pass/missed approach with one engine shut down, close to the airplane‘s maximum weight limit, in cross wind condition. During the approach and the low pass, the landing gears were in down position. During the go-around procedure, and after the landing gears were retracted, the airplane decented with the result of landing at the RWY with the landing gears up. The aircraft skidded down the runway and stopped outside the end of the runway. There were 5 persons on board the flight. One person was injured during the accident. The accident is being investigated by the Icelandic Transportation Accident Investigation Board. The Russian Federation has appointed an Accredited Representative to the Investigation. The Air Accident Investigation Commission in Russia will also participate to the investigation."
Source: Sukhoi Superjet 100 Aircraft Accident on Keflavik Airport on July 21st 2013 | Fréttir | Rannsóknarnefnd samgönguslysa - Flugslys
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A link to announcement from the Icelandic AAIU
And there is missing one letter in the statement of AAIU
...the airplane deScented...
Last edited by Karel_x; 27th Jul 2013 at 08:13.
