California teen survives flight to Hawaii in jet's wheel well - LA Times
Runaway stowaway survives Calif.-Hawaii flight: FBI - CBS News
"Despite the lack of pressurization, or personal O2 equipment, the presence of warm hydraulic lines in the wheel-well and the initially warm tires provided significant heat," the report stated. "The stable climb of the aircraft enabled hypoxia to lead to gradual unconsciousness. As the wheel-well environment slowly cooled, hypothermia accompanies the deep hypoxia, preserving nervous system viability. With descent, and warming, along with increasing atmospheric oxygen pressure, hypoxia and hypothermia slowly resolved. At the ramp, with individuals were found in a semi-conscious state, and, upon treatment, recovered."
So, potentially survivable, but not recommended
