The largest plateau in the world and the reason why planes did not fly over the Tibetan Plateau

“Tibetan Plateau”

Tibetan Plateau, the highest plateau in the world:

The Tibetan plateau is surrounded by high-altitude mountain ranges, as it is
located between the two highest mountain peaks in the world, Mount Everest
and the summit of Mount K2, the highest mountain in the Karakoram mountain
range and the second largest mountain in the world after Mount Everest
between China and Pakistan.

The Tibetan Plateau is located in southwestern China and is called the Chenghai
Plateau as well as the “Roof of the World”, or the third pole of the globe because
of its height.

The Tibetan Plateau reaches an altitude of 4,000 meters above sea level, and
consists of several mountain ranges arranged in rows, extending from east to
west, most of Tibet is located in the border between China, Nepal, and India, and
the length of the Tibetan Plateau reaches 2,400 km from east to west, while the
width of the Tibetan Plateau is about 800 km and the total area of the Tibetan
Plateau is about 2,5 million square kilometers.

Do planes really avoid flying over the Tibetan Plateau?

Who observes the movement of planes in the sky of earth, he finds that the Tibetan plateau is completely empty of aircrafts, so what is the reason for not allowing to fly over the Tibetan plateau?

The Tibetan Plateau is the highest plateau in the world with a height of
approximately 13,000 feet and consists of several mountain ranges located on
the border between India, China and Nepal.

The reason why planes did not fly over the Tibetan plateau:

The non-flight of aircraft over the Tibetan plateau is due to the presence of a
security threat to the safety of the aircraft and passengers If the plane flies over
those high mountain ranges, it is known that the planes fly above an altitude of
about 29 thousand feet approximately, but if the plane loses one of its engines or
any defect occurs in the pressure inside the aircraft, the pilot should reduce the
height of the aircraft a lot to regulate the pressure inside the cabin and to
enable passengers to breathe without the use of oxygen masks that Passengers
were able to breathe for only 20 minutes before the plane’s compressed oxygen
content ran out.

According to the flight rules, a pilot must get the plane to an altitude of 10000 feet and with these mountain ranges under the aircraft, this will be quit impossible to be achieved, making flying over the Tibetan plateau impossible for the aircraft