An internal U.S. Air Force document obtained exclusively by ABC News warned of the consequence of a total shut off of oxygen supply in the F-22 during certain specific high-altitude maneuvers.
The report, written by the Combined Test Force at Edwards Air Force Base in March 2000 and updated in 2002, said: “Real-world failure of [the oxygen system] due to ECS shutdown is unacceptable. ECS failure and the subsequent loss of supplemental breathing oxygen may result in pilot debilitation or fatality due to either altitude hypoxia [oxygen deprivation] or decompression sickness in the event of cabin depressurization.”
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