Clear-air turbulence
Videos
In meteorology, clear-air turbulence is the turbulent movement of air masses in the absence of any visual clues such as clouds, and is caused when bodies of air moving at widely different speeds meet.
Cirrus clouds often associated with clear-air turbulence
United Airlines Flight 826
Videos
On December 28, 1997, United Airlines Flight 826 was operated by a Boeing 747-100 flying from New Tokyo International Airport, Japan to Honolulu International Airport, Hawaii. Two hours into the fligh
Clear-air turbulence
…turbulence just downwind of Mount Fuji, Japan. The sequence of failure started with the vertical stabilizer getting ripped off. On December 28, 1997, on United Airlines Flight 826, one person died and 17 others were seriously injured in a CAT event. On May 21, 2024, one passenger died and dozens were injured on Singapore Airlines…
N4723U, the aircraft involved in the accident, seen in 1992