Can you see who is wearing their oxygen mask wrong?
A photo taken on a Southwest Airlines flight has sparked a debate about passengers' use of their oxygen masks after an engine exploded mid-flight killing one woman.
Mother-of-two Jennifer Riordan was killed on Dallas-bound 1380 on Tuesday after one of the engines exploded and hurled shrapnel while the plane was traveling 800km/h at 30,000 feet.
Marty Martinez was heading home to Dallas when he heard two explosions and saw the masks drop. He then paid for Internet access, pulled up Facebook and began recording.
“I had this feeling that I wasn’t going to survive this, and having to think, who do I reach out to first? Do I text my mom, do I text my dad, my brother, my sister?” he said.
“That was a very difficult position to be in, to think who is most important to your life and in what order?”
Mr Martinez's footage was quickly shared online and after the plane landed, many were quick to point out something wrong with the images.
Former flight attendant Bobby Laurie shared the photo with a caption reminding travellers to always cover their nose and mouth with the oxygen mask.
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"PEOPLE: Listen to your flight attendants!" Laurie said. "ALMOST EVERYONE in this photo from Southwest Air #SWA1380 today is wearing their mask WRONG," he wrote.
At least three people in the shot can be seen with masks covering their mouths, but not their noses, as instructed by flight attendants.
Some people have the masks fixed to their face using the oxygen mask band, while others are holding them up with their hands.
The masks provide oxygen to those on board in emergencies up to 40,000 feet, according to the Federal Aviation Administration.
They prevent hypoxia and carbon monoxide poisoning by using a series of one-way ports that allow a mixture of 100% oxygen and cabin air in.
According to the Australian Transport Safety Bureau, passengers must grab the nearest oxygen mask when they drop before pulling it sharply downwards to start the flow of oxygen.
Passengers must then fit the mask over their mouth and nose as inidicated on the safety card and secure the strap behind their head.
Mother-of-two Jennifer Riordan was killed after she was partially sucked out of a damaged window, her death caused by blunt impact trauma to her head, neck and torso, according to James Garrow, spokesman for the Philadelphia Department of Health.
Riordan’s death generated an outpouring of grief and public sympathy from Albuquerque business leaders, state elected officials, educators, writers and activists — all who portrayed Riordan as gracious and selfless.
“Jennifer’s vibrancy, passion, and love infused our community and reached across our country,” her family said.