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'Inside Look at the Mars Simulation Project in Utah
Inside Look at the Mars Simulation Project in Utah (2:42)
Preview thumbnail for video'Gladiators Didn't Die As Often As You Think
Gladiators Didn't Die As Often As You Think (1:22)
Preview thumbnail for video'This Is How MINI JCW Turbo Engines Are Built
This Is How MINI JCW Turbo Engines Are Built (2:17)
Preview thumbnail for video'This African Warrior Ceremony Was Highly Intimidating
This African Warrior Ceremony Was Highly Intimidating (3:17)
Preview thumbnail for video'This Female Gladiator Captive Had to Fight for Her Life
This Female Gladiator Captive Had to Fight for Her Life (2:39)
Preview thumbnail for video'Meet the Nomad Girl Who Hunts With a Golden Eagle
Meet the Nomad Girl Who Hunts With a Golden Eagle (1:02)
Preview thumbnail for video'The Significance Behind Ancient Scythian Tattoos
The Significance Behind Ancient Scythian Tattoos (1:38)
Preview thumbnail for video'Cameras Catch Adorable Glimpse of Mountain Lion Family
Cameras Catch Adorable Glimpse of Mountain Lion Family (3:32)
Preview thumbnail for video'This Mountain Lion Hides Her Kills in Abandoned Ranches
This Mountain Lion Hides Her Kills in Abandoned Ranches (3:23)