SIA 777 off the rwy at EDDM
please excuse the dumb question, Slayerdude, but how can you tell from the video that reverse thrust wasn't activated?
Thanks.
Thanks.
.The pilot does the commanding but the reverse only activates once all the aircraft systems are satisfied.
To my knowledge all the contributing factors in this regard are not yet known to us.
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Vested.... The pilot has to manually put engines in rev.... N m not makin observations ... M confirming No rev selected....
380 .... Auto land available in land 3 or land 2 verified at 500ft(fail passive system).... Flare capture at 40ft, idle at 25 ft n rollout in gnd mode...all 3 annunciations wont be available with no autoland eicas msg
Fd system has 3 sec memory of last track to take care of scalloping..... If loc signal was to the left for more than 3 secs.... Yep ... Fd will take last signal reference ..... Hence veering left.... To correct might hav used tiller ... N tiller to be used only below 30 knots... High speed tiller used might hav created the violent swing to the right..... Speculation only .....
380 .... Auto land available in land 3 or land 2 verified at 500ft(fail passive system).... Flare capture at 40ft, idle at 25 ft n rollout in gnd mode...all 3 annunciations wont be available with no autoland eicas msg
Fd system has 3 sec memory of last track to take care of scalloping..... If loc signal was to the left for more than 3 secs.... Yep ... Fd will take last signal reference ..... Hence veering left.... To correct might hav used tiller ... N tiller to be used only below 30 knots... High speed tiller used might hav created the violent swing to the right..... Speculation only .....
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" a few days after the incident in which former CEO ... Dr. CHEONG said verbatim" this is our airplane, these are our pilots and we take full responsibility"
Yep, a few days is a long time following an accident.
SQ were forced to make this admission after totally botching the PR immediately following the accident.
Yep, a few days is a long time following an accident.
SQ were forced to make this admission after totally botching the PR immediately following the accident.
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... To correct might hav used tiller ... N tiller to be used only below 30 knots... High speed tiller used might hav created the violent swing to the right.....
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An AF346 747 captain wrongly used the tiller (Aug 8th 2008 at CYUL) and caused the plane's nose to go off the runway.
May not be relevant but the Munich Atis today included a warning that the runway might be slippery due to de-icing fluid. In Munich the de-icing is carried out immediately before the runway. A russian A310 coincidentally slipped of the runway close to this point some time ago on take off with asymetric spooling up of the engines. It has never seemed paricularly slippery to me, but then you might only notice it when it is too late and were not expecting it....food for thought.
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and if it's slippery it slips along the approach axis. Slippering makes corrections (left, right, deceleration) more difficult. Not making it going left and right!
I was not flying that day so I cannot say if anyone availed themselves. However LH by far the biggest users of the airport are enthusiastic de-icers even when it appears relatively warm.
I am not quite sure about your point Dani. If the aircraft was for some reason already heading off to one side a slippery runway would definitely make things more difficult.
The high speed excursion in Denver was another example of a captain misusing the tiller at high speed by the way Totempole.
The de-icer fluid is probably not relevant. But the Atis message did make me think.
I am not quite sure about your point Dani. If the aircraft was for some reason already heading off to one side a slippery runway would definitely make things more difficult.
The high speed excursion in Denver was another example of a captain misusing the tiller at high speed by the way Totempole.
The de-icer fluid is probably not relevant. But the Atis message did make me think.
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However LH by far the biggest users of the airport are enthusiastic de-icers even when it appears relatively warm.
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In the video we can see a direct hit to the engine by dirt thrown up by the digging in of the nose gear. 
Also, later, as the MLG goes back onto the runway, we can see gray smoke probably from the MLG as it "slides" sideways. (see photo also)
I'm impressed with the MLG and the tires
Also, later, as the MLG goes back onto the runway, we can see gray smoke probably from the MLG as it "slides" sideways. (see photo also)
I'm impressed with the MLG and the tires
In the video we can see a direct hit to the engine by dirt thrown up by the digging in of the nose gear
If the engines were damaged it could be from dirt thrown up with the reversers deployed.
The nose gear wake is designed to keep puddled water out of the engines and methinks that also applies to dirt
Lomapaseo - a few points.
The reversers where never deployed.
I agree with you about the nose wheel wake being kept out of the engines - BUT - that is under normal operations. When one is on the gravel doing a 12 wheel drift in the 777, the chances of debris being ingested by the engines, caused by the nosewheel is very much higher!
The reversers where never deployed.
I agree with you about the nose wheel wake being kept out of the engines - BUT - that is under normal operations. When one is on the gravel doing a 12 wheel drift in the 777, the chances of debris being ingested by the engines, caused by the nosewheel is very much higher!
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When the nose gear fell fast and dug into the grass, the nose gear was right of the right-MLG's longitudinal axis, thus the plane's nose whipped to the right and eventually back onto the runway with the rear of the plane whipping around the nose; thus the very curved marks in the grass.
From the MLG tire marks as it went back onto the runway I estimate that the plane's tires were moving/sliding 25 degrees off the plane's longitudinal axis !
I'd love to hear what the passengers had to say about the ride.
From the MLG tire marks as it went back onto the runway I estimate that the plane's tires were moving/sliding 25 degrees off the plane's longitudinal axis !
I'd love to hear what the passengers had to say about the ride.
Controversial, moi?
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When the Boeing 777-300 descended through 30 feet AGL, the aircraft began to roll left,
No matter windshear, ****** up automatics, gusts, whatever...
