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8182
The supplemental oxygen requirements for passengers when a flight is operated at FL 250 is dependent upon the airplane's ability to make an emergency descent to a flight altitude of
| | A) 10,000 feet within 4 minutes. |
| | B) 12,000 feet within 4 minutes or at a minimum rate of 2,500 ft/min, whichever is quicker. |
| | C) 14,000 feet within 4 minutes. |
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