Yes, Putting an Emergency Oxygen Mask on First Is Vital

Investigators looking into the October 25, 1999 crash of Learjet 35 were faced with a puzzling question: If the supplemental oxygen was working, why didn't the crew use their masks as soon as they ran into trouble? (3:08)

Tags

Latest Videos

Preview thumbnail for video'Hostile Lioness Withholds Food From Hungry Orphaned Cubs
Hostile Lioness Withholds Food From Hungry Orphaned Cubs (3:09)
Preview thumbnail for video'Why Depth Charges Don't Have to Touch a Submarine to Sink It
Why Depth Charges Don't Have to Touch a Submarine to Sink It (3:52)
Preview thumbnail for video'Five Young Lion Brothers Mate With One Lioness
Five Young Lion Brothers Mate With One Lioness (3:44)
Preview thumbnail for video'How Spawning Squid Offer a Buffet for Predators
How Spawning Squid Offer a Buffet for Predators (2:58)
Preview thumbnail for video'A Clever Cuttlefish Goes in for the Kill
A Clever Cuttlefish Goes in for the Kill (1:55)
Preview thumbnail for video'The Remarkable Way Calamari Squid Catch Their Prey
The Remarkable Way Calamari Squid Catch Their Prey (1:37)
Preview thumbnail for video'A Polar Bear Released Back Into the Wild by Helicopter
A Polar Bear Released Back Into the Wild by Helicopter (2:12)
Preview thumbnail for video'This Footage of Jaguars in Panama Could Save Their Lives
This Footage of Jaguars in Panama Could Save Their Lives (3:39)
Preview thumbnail for video'How Churchill Protects Itself From Polar Bears
How Churchill Protects Itself From Polar Bears (2:28)