[Lonesome in Massachussets]

It's very strange, because I thought that ICAO regulations require at least one member of aircrew to be on oxygen at all times when the aircraft is above a specified altitude (like 14,000 feet), in case of decompression. Even in the event of rapid decompression, the air crew should have had time to don their oxygen gear. Something stinks about this story.

[Yo-Yo]

FAA regulations say a flight crewmember must wear a mask only when the other crewmember leaves the flight deck.

Sec. 121.333 - Supplemental oxygen for emergency descent and for first aid; turbine engine powered airplanes with pressurized cabins.

SNIP... (3) Notwithstanding paragraph (c)(2) of this section, if for any reason at any time it is necessary for one pilot to leave his station at the controls of the airplane when operating at flight altitudes above flight level 250, the remaining pilot at the controls shall put on and use his oxygen mask until the other pilot has returned to his duty station.

[jwpjr]

re: ICAO regulations require at least one member of aircrew to be on oxygen at all times when the aircraft is above a specified altitude (like 14,000 feet), in case of decompression.

The requirement is that when a member of the flight crew leaves the cockpit that the remaining pilot don the oxygen.

[Arkie2]

FAA regs require a pilot to be on oxygen above FL 250 if he's the only one occupying the seat. That would happen if the other pilot had to make a trip to the lav etc. The requirement for one pilot to always be on oxy doesn't kick in til FL 410 I believe.

[AmericanDave]

One crewmember has to be on oxygen if the other leaves the cockpit, leaving just one pilot at the controls. Or if they are flying above 41,000 feet.

[Domangart]

Yea but the cockpit door was also closed and yet there were people seen in the cockpit. Oh look its 10 Sept 2001 already. It's safe to fly again.