Detailed text transcripts for TV channel - MSNBC - 20140325:06:09:00
Passenger service units are automatic when the cabin altitude reaches 14,000 feet. the door opens, the masks come down. that's automatic. when you extend them, you start a chemical process in an oxygen generator, and they will give you around 12 to 14 minutes of oxygen. and the idea is to get the airplane down to breathable air. that's how that system works. the pilots have a different system. they have face masks and oxygen masks that go on together. and it's a very tight seal. and the pilots are trained to put those on at the first sign that the cabin altitude is climbing above 10,000 feet w...