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Thread: CRASH ;Yakovlev Yak-42 passenger planecrash ,Central Russia

  1. #11
    Super Moderator scanhorse's Avatar
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    Plane investigators rule out several crash causes

    The list of possible reasons which could have led to the deadly plane crash is shortening as the investigation is in full swing. Recent findings have ruled out the possibility that low-quality fuel could have been a cause of the tragedy.
    *“There is no reason to believe that the quality of jet fuel did not meet the requirements, " the Federal Air Transport Agency’s (Rosaviation) reported On Saturday.

    Life News tabloid reporters found out, the fatal flight was one of the first in the aircraft for the second pilot Igor Zhevelov. He had been piloting aircraft for the last 25 years, but the Yak-42 was a new type of plane for him and he had no practice on it.

    MORE..................................

    http://rt.com/news/russia-investigat...ane-crash-247/

    Tens Of Thousands Mourn Hockey Players In Yaroslavl.... may they R.I.P

    http://www.rferl.org/content/tens_of.../24324388.html

    LOKOMOTIV WITHDRAWS FROM CHAMPIONSHIPS





  2. #12
    Super Moderator scanhorse's Avatar
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    Dead also the hockey player who survived russia's air crash

    R.I.P.
    (AGI) Moscow - The last Lokomotiv Yarasolavl ice hockey player who survived the air crash of 7 September in Russia died this morning. The Lokomotiv Yarasolavl team was three times Russian champion and was completely wiped out in last Wednesday's accident. The player, 26-year old right-winger Alexander Galimov, had suffered 2nd and 3rd degree burns over 80% of his body; at first, rescuers had thought he was dead but then they realized that he was still alive, although in desperate conditions.

    http://www.agi.it/english-version/wo...ia_s_air_crash

  3. #13
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    Aleksandr Sizov, the plane's flight engineer, as the accident's only survivor.

    Sizov's life was 'no longer in danger' and he was expected to recover from his injuries, according to a statement from Moscow's Sklifosovsky Institute, where he is receiving treatment.
    A government investigation into the accident and analysis of flight recorder data was continuing on Monday.



    http://www.monstersandcritics.com/ne...es-in-hospital

    From PPrune
    QUOTE;
    Actually, the most likely scenario to me is brakes binding. The primary thing that caught fire in the lake was the entire wheel bogey. But why? Fuel spillage on the tyres is possible, but this was the only fire I could see. More likely is that the the brakes and tyres were glowing white hot, and burst into flames. It would explain the overrun and the fire.
    END QUOTE, very likely

  4. #14
    Super Moderator scanhorse's Avatar
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    Yesterdays YAK news from MAK / Avherald

    The Technical Commission of the Interstate Aviation Committee (IAC) to investigate the crash of the Yak-42 RA-42 434 with the participation of Russian aviation and Russian Emergencies Ministry has almost completed work for the field phase of the investigation (collection of the fragments and components of the aircraft, establishing sketch scene of the accident, the collection and analysis Flight and technical documentation of the aircraft, airport and its services, and other necessary work.)
    In Science and Technology Center IAC completes processing and interpretation of airborne parametric and sound recorders.
    To work on the analysis of available information about the emergency flight involved flying, scientific and technical experts.
    Been identified voices of the crew.
    According to preliminary results of the decoding and analysis of available data and the documentation set:
    1. The Yak-42 tail number RA-42 434, made ​​in 1993, has a total flying time of about 6500 hours, which is 2 times less than the assigned resource-12000 hours.
    2. Take-off weight aircraft was less than the maximum allowable for takeoff.
    3. By appointment parametric recorder on board was about 14 tons of fuel, of which 8 tons were replenished at the airport in Yaroslavl (fuel analysis is carried out).
    4. Before takeoff the crew carried out the inspection of all channels of control of the aircraft, including the channel of the elevator. Helms turned down in normal mode.
    5. Weather conditions at the airport, including value of crosswinds, not to interfere with the flight.
    6. The engines worked until the moment of collision with the ground.
    7. Before takeoff stabilizer and flaps were installed during take-off position.
    8. Single command, testifying to failure of aircraft, to write the parametric recorder is not fixed. However, the remaining elements of the system are sent to study in specialized research centers.
    The Technical Commission does not rule out a natural experiment on the plane-analog.
    Technical Commission of the MAC established a connection with accident investigation authorities of those States whose citizens were on board the aircraft - the Czech Republic, Germany, Slovakia, Sweden, Latvia and Canada, with which the IAC and the previously available permanent working contacts. Experts of State may, if necessary, in consultation with the IAC to take part in the investigation of this accident.
    The Technical Commission continues its work.

    http://translate.google.se/translate....ru%2F&act=url

    And here is the Resume from Avherald

    http://www.avherald.com/h?article=4428da13&opt=0

  5. #15
    Super Moderator scanhorse's Avatar
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    Wrong engine operating condition is likely cause of Yaroslavl air crash

    A wrongly chosen engine operating condition may have been the likely cause of the recent crash of a YAK-42 airliner near Yaroslavl on the 7th of this month, a crash that claimed the lives of the local Lokomotiv hockey club team.
    This came in a statement for the Interfax news agency by a source in the law enforcement bodies.
    A lead is now being followed up whereby the pilots may have failed to light the afterburner during the take-off run.
    As a result, the plane failed to pick up the required speed due to insufficient thrust to gain height during the take-off.
    The lead is proved by the fact that the pilots, when still on the runway, failed to report any technical problem to the flight traffic controllers.

    http://english.ruvr.ru/2011/09/12/56035432.html

  6. #16
    Super Moderator scanhorse's Avatar
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    Just came in on news , more to come

    According to our source, the credible, the commission has found that the plane began to crackdown on the runway with the parking brake nevyklyuchennym. This device - analog handbrake in a car - used only for parking. Engine power is enough that the aircraft moved from its place, being on the parking brake (as well as some forgetful motorists gets under way on the "hammer") and have driven on a taxiway to the runway. But to accelerate to takeoff speed is already becoming problematic.

    In addition, the source said, "MK", ​​which, according to the transcripts of the speech recorder Yak-42, immediately before takeoff the aircraft commander ordered Andrew Solomentsev second pilot Igor Zhevelovu to take it over, citing poor health.

    The parking brake was off just a commander. But perhaps the moment of transfer of control of the pilots just forgot it and did not pay attention to the corresponding signal on the dashboard (beep it is not duplicated).

    Neisklyucheno that when the Yak-42 began to accelerate for takeoff and could not gain the required speed, the pilots noticed a mistake and turned off the brake.

    Minor improvement seen in Yak-42 survivor's condition

    Flight engineer Alexander Sizov, injured in the Yak-42 passenger liner crash near Yaroslavl has been transferred from intensive care to the burns department and he is showing minor signs of improvement, a Moscow medical source told Interfax.

    "Sizov was moved from intensive care to the burns department last night and his condition is slightly improving," he said.

  7. #17
    Super Moderator scanhorse's Avatar
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    Established cause of the accident Yak-42: pilots forgot to turn off the parking brake

    http://translate.google.se/translate...iy-tormoz.html

    Established cause of the accident Yak-42: pilots forgot to turn off the parking brake

    The cause of the crash of the Yak-42 near Yaroslavl, where hockey team lost "Locomotive", called "MK" in the aviation industry source close to the investigation. As it turns out, has led to the tragedy of banal pilot error, which motorists have called a "mistake blonde": they forgot to turn off the parking brake


    Yak-42 "Proton" # 42434 Cabin configuration
    http://www.pprune.org/6698546-post116.html

  8. #18
    Super Moderator scanhorse's Avatar
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    more possible causes

    http://www.pprune.org/6702530-post128.html

    and a post comment

    QUOTE
    So that's what happened: they forgot to make the proper trim setting, aircraft accelerated to V2 (210-230) but refused to get off the ground, Captain ordered to increase thrust, F/O made a comment about trim, Captain agreed and still tried to take off. Looks like a situation where the takeoff should have been aborted even after V1.. END QUOTE

    Should be nice to get the correct soloution to this accident

  9. #19
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    New report fr MAK , 17/9 in translate

    Yesterday a new statement from MAK

    http://translate.google.se/translate....ru%2F&act=url

    09/17/2011 According to the results of the field phase of the investigation the crash of the Yak-42 RA 42 434 in the terminal area of Yaroslavl and in accordance with a preliminary analysis of available documentation and data decryption means of objective control of the Technical Commission of the Interstate Aviation Committee (IAC) was established:
    Takeoff weight and center of gravity aircraft did not exceed the permissible limits.
    Before beginning the takeoff flaps were set at 20 degrees (take-off position), the stabilizer -8.7 degrees on the pitch up, which corresponds to the estimated 24-25% of the alignment of the MAR.
    Before takeoff the crew double-check all the channels had control of the aircraft, including the channel of the elevator, the elevator was deflected cleanly. The maximum recorded deflection of the elevator pitch up to 21 degrees, which corresponds to a constructive stop. Last check was performed for 1 minute and 40 seconds before takeoff.
    Weather conditions at the time of the accident: wind 360 - 3 m / s, visibility 10 km, clouds significant stratocumulus lower limit of 990 m, the temperature of +17.8, 747.9 mm Hg pressure. Art., friction coefficient of 0.6.
    Take off from runway 23 was carried out. Taxiing aircraft to take off was carried out by RD 5. Distance from RD 5 to the input end of runway 23 of about 300 meters. The total runway length of 3000 meters.
    The crew decided to take off at nominal operation of the engine. Preliminary simulations showed that the rate of up to ~ 165 km / h acceleration rate corresponded to the plane actually installed engine thrust.
    The rise of the nose wheel crew began at approximately 185 km / h. The elevator was rejected by pitch up to values ​​of 9-10 degrees (about half speed), but the growth of the pitch angle has not happened. After 6 seconds the engine was installed takeoff mode. In the future, despite the output of engines for takeoff, the growth speed slowed significantly, which may be explained by the appearance of additional braking force. The actual value of an additional braking force will be established based on the results of mathematical modeling and field experiment, scheduled on a plane analog-to LII. MM Gromov. On the part of OKB preparing flight program of the meeting. Surviving the braking systems of the aircraft sent to study in a specialized institution. Studies brake system started on 16 September.
    The maximum speed is reached the plane, is approximately 230 km / h. In spite of continuing rejection of the elevator pitch up to the separation plane on the runway did not happen. According to the sketch scene of the accident, the actual separation of aircraft took place at a distance of 400 meters at the exit end runway 23 after deflection of the elevator at 13-14 degrees and the relocation of the stabilizer up to 9.5 degrees on the pitch up. After separation of the aircraft from the ground was his encounter with the antenna system localizer and the rapid growth of the pitch angle to 20 degrees for 2-3 seconds. Maximum height, which scored aircraft - of 5-6 meters.
    Later followed by intensive krenenie plane to the left and its collision with obstacles and the ground.
    According to the results the calculations of fragments of the aircraft revealed that at the time of the accident flaps and slats were installed during take-off position, the spoilers are retracted, the stabilizer in position about 10 degrees pitch up. Wiring layout elevator control showed that at the time of the accident was not disconnecting the wiring.
    The Technical Commission fulfills all possible versions of the occurrence of additional braking force on the takeoff and the reasons why the aircraft failed to make timely detachment from the runway.
    In connection with appearing in the media numerous "versions" of the causes of the accident with the Yak-42D RA-42 434, referring to close to the investigation of the "experts", the Technical Commission of the Interstate Aviation Committee said that official information about the investigation found only in Internet site of the MAC. Links to any other sources, the publication of unofficial material and "copying" of the various versions of the causes of the accident conflict with the moral and ethical standards, international and Russian rules of accident investigation.

  10. #20
    Super Moderator scanhorse's Avatar
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    Transcript reveals new details of Lokomotiv Yaroslavl crash

    A transcript of the last 40 seconds of communications between the Russian pilot and crew of the Yak-42 plane carrying the Yaroslavl ice hockey team before it crashed on Sept. 7 killing 44 people, including star Czech players, indicates pilot error was likely to blame. The crash investigation team head said on Tuesday that tests also show the pilot and crew were sober. Meanwhile, the sole survivor, a flight engineer, is out of intensive care. ...........................................

    Here follows a translation of the rest of the communication between the flight crew:
    Flight engineer:“220, 230 [kph].”
    Copilot:“It’s probably the stabilizer.”
    Pilot:“Takeoff [mode], takeoff mode, stabilizer.”
    Copilot:“What are you doing?”
    Pilot:“Takeoff mode.”
    Flight engineer:“Takeoff mode.”
    Pilot: (swears)
    Copilot:“Andryukha!” – familiar form of the pilot’s name Andrei.

    more.............................................. .........

    http://www.ceskapozice.cz/en/news/so...aroslavl-crash

    Free translation on PPrune ;

    Time stamps:

    11:58:37
    Captain: 74, 76.
    11:58:40 F/E: 74, 76.
    11:58:41 Captain: time, lights, taking off, limit 190.
    11:58:53 Captain: 3, 4, 5, nominal (thrust).
    11:58:58 F/E: At nominal.
    11:58:59 F/E: Speed increasing.
    11:59:04 F/E: Parameters OK.
    11:59:07 F/E: 130
    11:59:12 F/E: 150
    11:59:15 F/E: 170
    11:59:19 F/E: 190
    11:59:27 F/E: 210
    11:59:28 Captain: TOGA!
    11:59:31 F/E: 220
    11:59:34 F/E: 230
    11:59:37 F/O: Probably the stabilizer
    11:59:41 Captain: TOGA! TOGA! HS
    11:59:47 F/O: What are you doing
    11:59:48 Captain: TOGA!
    11:59:49 F/E: TOGA
    11:59:56 F/O: Andrey!

    After 11:59:19 acceleretion decreased. Between first instruction instruction TOGA! and F/E confirmation seems to be interval 21 sec! It look like the first command was omited and TOGA was set after the captain secound command.

    http://www.pprune.org/rumours-news/4...-russia-8.html

    QUOTE another from PPrune

    There is many a passenger in a car who subconsciously presses hard on the footwell when they think the driver is too close to the car in front, without saying anything about it (the imaginary brake).

    Conversely, if it was a braking system fault, then what could cause brakes to come on uncommanded? It is not a usual system failure. Does the Yak have autobrakes?

    Another possibility might be a brake that was binding from the beginning, but the problem worsened as it got hotter. A brake would need to be on for some time, or on very hard, to get enough energy to burst into flames.

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