bobgssc wrote:
Both CNN (liberal) and Fox (conservative) have reported that FAA investigators as well as their counterparts in China are stating that wh**ever happened to that plane did so at the hands of the aircrew. If the aircrew were "out of action" one would have to assume a catastrophic failure in the cockpit and it would be very unlikely that the autopilot would be able to continue for several hundred miles that the plane definitely continued. I'm not blaming the flight crew because they were Muslims but because this is what the data shows. I would of course be interested in any data showing otherwise.
Both CNN (liberal) and Fox (conservative) have rep... (
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A lot of the info on what happened came from t***sponder sqawks at first, so if that piece of equipment was affected by the heat/smoke it could have been giving false information before the crew was aware of it. Hence the casual "goodnight".
Similarly the positions, also from the t***sponder, and the altitudes, could have been spurious.
When the crew realized they had a problem they would have started a turn back to home base, and if they stopped the turn when mosly around, due to confusing position data (again caused by the fire/smoke) it could very well have been on the final heading they took afterward.
Those positions and altitudes we were told about make no sense as they were reported, and I suspect that they were inaccurate. For example the airplane was too heavy to have climbed to FL450 even if the crew had wanted to do so.
So now we have a confused crew, maybe suffering from smoke inhalation, on oxygen and wearing smoke hoods, trying to make sense of the situation. They might have been t***smitting an emergency call, but unkown to them the radios were out.
You only have a few minutes to get this right or you pass out. It has happened before. In an ideal world you will be on oxygen, but the mask has to be located and donned, and who knows if they had practiced with the masks as fitted? (check to see if the simulator has the same type of mask, and if the crews routinely practised putting them on. Many airlines do not take this seriously). Or had them plugged in? The radio connection to the masks was probably not plugged in, or they would have managed something.
The Swiss Air crew were forced out of their seats because the fire originated in the cockpit. The heat/smoke was too intense for them to remain and they had to flee to the passenger cabin and could not prevent the final crash into the ocean. they made no radio calls either (the FDR CVR were located and so we know what happened).
The Air France crew had time to make calls but did not do so, fighting for control of their airplane until the last. (there is more to that accident, I am only talking about communications).
So why did the fire not bring the airplane down? If it stays at altitude the fire will be starved of oxygen and go out, after smouldering for a while and filling the airplane with toxic smoke. Again, this has happened before.
When the airplane electrical supplies fail, a standby wind-driven generator automatically extends and supplies some electrical power and hydraulics. It is not enough to run the entire ship but is designed to operate one radio, the auto pilot basic functions, basic flight controls and little more, If the one radio it powers was the one that had failed, they would have no comms.
So with the crew incapacitated, the auto pilot operating in basic attitude mode and altitude hold (this is not particularly vulnerable to electrical supply spikes or failures, while the navigation functions need good power and input to run), it would continue on the last heading selected until it runs out of fuel and goes down.
This makes more sense to me than a takeover by a pilot. If the pilot had taken over he would have wanted to put it into the sea immediately. Why would he continue for up to 7 hours before doing so? He would know that the crew in the cabin would be trying to get in and eventually they would succeed. There are ways to do this. Even if he thought to shut down the pressurization and force the passengers to pass out, they have portable oxygen supplies that would allow some of them to remain active for quite a while. The valve turning on/off the passenger oxygen supply is not accessible by the pilot, and if they had oxygen generators they run automatically and cannot be shut down by the pilot. They would give 20 minutes per passenger, and with half a load, the passengers could use the generators in unassigned seats to get more time.
I can see the Silk Air situation, or the Egyptian Air case, or the Japan Airlines, or Fedex for that matter, but this one does not seem to be a pilot suicide.