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Thread: Use of oxygen when one pilot is on break
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Old 26th Dec 2015, 08:51
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A Squared
 
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Originally Posted by Spooky 2
I believe the FAA rule is +FL350. Use to be FL250

It's still FL250 under part 121

121.333 (c)(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.
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