Air France 447 had no distress call...

God Bless.

That makes me think there was Hypoxia involved even more.

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What kind of planes were they?

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All Airbus?

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Malaysia 370 was a Boeing 777.

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Quite famously, but I am torn between hypoxia and intentional act on one or both of the flight crew on that one.

This one (German) sounds like hypoxia, but the black box should tell. It would on MH 370, but it's never been found.

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That makes me think there was Hypoxia involved even more.

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I just saw on CNN that the plane had completed a maintenance just yesterday. I think the maintenance people fricked up big time. Here's a story about a private jet flying from BTR to somewhere in Florida 5 or 6 years ago.

An experienced pilot had just taken delivery of a Beechcraft Premier. He had thousands of hours but was very knew to the Premier. The plane had been given a thorough inspection prior to delivery to the new owner. Before he took off he forgot to set the pressurization. During the climb to cruising altitude of about 25K the pilot along with 2 or 3 pasenders Passed out due to lack of oxygen. There were no warning lights or alarms that sounded. The owners dog just happened to be on board and woke the pilot up by licking at his hand. When he woke up he somehow realized what was happening and knew he would quickly pass out again and die. He managed to put the autopilot altitude selector to 10K feet and hit the descent button before passing out again. He eventually woke up once the plane leveled at 10K and landed at the nearest airport.


Turns out the maintenance guy checking the pressurization system forgot to plug the wires for the warning system back in when he was done with his check. So the pilot never realized he forgot something or that he was in any danger until luckily the dog woke him up.

Something similar could have happened here.

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The Air France crash was pilot error/systems failure.

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Yeah, but the recorder shows what happened and it wasn't hypoxia - or at least that wasn't a primary cause. The crew knew they were going to crash, although they probably didn't understand all of the mechanics.

That's an Airbus specific issue with the sidestick/autopilot, etc. Their planes are very sophisticated, electronically, but do not provide for as consistent feedback in the controls themselves. And it took 3 years to find that black box, didn't it?

We'll know the Germanwings within days, couple of weeks at most.

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An experienced pilot had just taken delivery of a Beechcraft Premier. He had thousands of hours but was very knew to the Premier. The plane had been given a thorough inspection prior to delivery to the new owner. Before he took off he forgot to set the pressurization. During the climb to cruising altitude of about 25K the pilot along with 2 or 3 pasenders Passed out due to lack of oxygen. There were no warning lights or alarms that sounded. The owners dog just happened to be on board and woke the pilot up by licking at his hand. When he woke up he somehow realized what was happening and knew he would quickly pass out again and die. He managed to put the autopilot altitude selector to 10K feet and hit the descent button before passing out again. He eventually woke up once the plane leveled at 10K and landed at the nearest airport.
An experienced pilot had just taken delivery of a Beechcraft Premier. He had thousands of hours but was very knew to the Premier. The plane had been given a thorough inspection prior to delivery to the new owner. Before he took off he forgot to set the pressurization. During the climb to cruising altitude of about 25K the pilot along with 2 or 3 pasenders Passed out due to lack of oxygen. There were no warning lights or alarms that sounded. The owners dog just happened to be on board and woke the pilot up by licking at his hand. When he woke up he somehow realized what was happening and knew he would quickly pass out again and die. He managed to put the autopilot altitude selector to 10K feet and hit the descent button before passing out again. He eventually woke up once the plane leveled at 10K and landed at the nearest airport.

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That dog wouldn't eat dog food the rest of his life. I'd do every thing I can to give him the best day ever every day he had left.

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Something similar could have happened here.

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very similar to the Payne Stewart tragedy, in fact newer corporate jets have a "Payne Stewart" feature that will cause the a/c to go FL change and descend to 14k' if the cabin reaches a certain altitude and no response taken by the crew

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"Payne Stewart" feature

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Should be something like this on any flight where the altitude of the terrain didn't come into play. Should automatically send a signal to all towers and aircraft in the area at the same time.


ETA:

Should be an independent secondary system.

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And how would that have gone, "Mayday, mayday - apparently neither of us can actually fly this fricking thing."

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