Why Jets Avoid Tibet

Pilots can't descend to a safe 10,000 feet over Tibet during an emergency due to its high geographical elevation. Commercial flights follow that protocol after depressurization or engine failure, but the Tibetan Plateau averages about 14,370 feet, leaving no room to level off safely. Pilots also face severe mountain-wave turbulence and extreme cold that can contribute to fuel icing. Airlines route around the region to keep emergency descent options open.

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