How long must supplemental oxygen last for 100% of the passengers?

(ii) Above 15,000 feet MSL, oxygen to each occupant of the aircraft, other than the pilots, for one hour unless, at all times during flight above that altitude, the aircraft can safely descend to 15,000 feet MSL within four minutes, in which case only a 30-minute supply is required.



People Also Ask

Supplemental Oxygen Requirements:
  • Sea Level to 12,500' - No oxygen required.
  • 12,501' to 14,000' - Required by the required crew if over 30 minutes at this altitude.
  • 14,001' to 15,000' - Required to be provided and used by the required flight crew.
  • 15,001' to 25,000' - Must be provided for every occupant.


MORE DETAILS

Generally used on large aircraft in case of an emergency to provide a 10 minute supply of oxygen. Activated by a lanyard on the oxygen mask, as the user pulls the mask to their face, a chemical reaction with sodium chlorate is triggered. Once this system is activated, it must burn out, requiring replacement.

MORE DETAILS

There are three standard types of aviation oxygen systems:
  • Continuous flow: For aircraft that fly under 25,000 feet or utilize a portable oxygen supply.
  • Diluter demand: Meant for flight between 25,000 and 40,000 feet high.
  • Pressure demand: Systems for aviation at over 40,000 feet.


MORE DETAILS

For best protection, you are encouraged to use supplemental oxygen above 10,000 feet MSL. At night, because vision is particularly sensitive to diminished oxygen, a prudent rule is to use supplemental oxygen when flying above 6,000 feet MSL. So, when you fly at high altitudes, supplemental oxygen is the only solution.

MORE DETAILS

Importance to Members Sure, everyone knows that you have to use supplemental oxygen if you fly more than 30 minutes at cabin pressure altitudes of 12,500 feet or higher. And that at cabin altitudes above 14,000 feet pilots must use oxygen at all times.

MORE DETAILS

If oxygen deficiency continues over a long enough period of time, it can cause unconsciousness, permanent brain damage or even death. So, in order to keep everyone maintained with enough oxygen, the masks fall down and provide a personal flow.

MORE DETAILS

Airlines are not required to provide oxygen service and many do not. Passengers may carry portable oxygen concentrators (POCs).

MORE DETAILS