FAR ninety-one dot two eleven and the oxygen rules that change at twelve thousand five hundred feet
FAR 91.211 requires crew oxygen after 30 minutes above 12,500 feet, immediately above 14,000, and passenger oxygen above 15,000.
Patternhigh altitude flying
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TowerFAR ninety-one dot two eleven and the oxygen rules that change everything above twelve thousand five hundred feet
FAR 91.211 requires crew oxygen above 12,500 feet after 30 minutes, above 14,000 feet immediately, and passenger oxygen above 15,000 feet.
Pattern