AMERICA — Southwest Airlines Flight 1380 suffered a massive engine failure on Tuesday, which forced the pilot to make an emergency landing.
When the left engine blew apart, it sent shrapnel through the plane, killing one passenger, and leaving a hole in the aircraft, according to CNN.
The hole caused the cabin to depressurize, and the oxygen masks to drop down.
One photo from passenger Marty Martinez shows several passengers wearing oxygen masks incorrectly.
To properly use the mask, pull down on the mask until the plastic tubing is fully extended.
Put the mask over you mouth and nose and breathe regularly.
At altitudes over 15,000 feet, people struggle to breathe and keep their blood oxygenated.
They can develop a condition called hypoxia and lose consciousness within minutes, according to Business Insider.
According to the Aircraft Owners and Pilots Association, symptoms of hypoxia include, "nausea, apprehension, tunnel vision, headaches, fatigue, dizziness, blurred vision, tingling sensations, numbness and mental confusion."
Flight 1380 engine failure occurred at 31,000 feet, according to passenger reports.
The National Transportation Safety Board is currently investigating the incident.