They keep talking about "only highly trained individuals" would have been able to do some of this stuff... but it's a just a matter of finding the pressurization section of the overhead panel, flipping the outflow valve switches to manual open, then boom... anyone who doesn't get their mask on in 10-15 seconds is done (at 41,000 feet) and will die in a minute or two assuming nobody gets a mask on them. It's frighteningly easy. Maybe pull the breaker for pax oxygen so they all just die anyway.
Oxygen supplies last maybe 20 min? So just wait ~25 minutes after opening the outflows if you've had difficulty disarming the masks. Same result.
Then you're free to repressurize and resume your attempt to reach the South Pole, or wherever he was going.
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