Excerpts from a NPR article:
How dangerous is turbulence on airplanes? Here's what you need to know
March 5, 2023
Over the past week, significant turbulence caused one death and one hospitalization on a business jet and seven hospitalizations on a commercial flight....
....From 2009 to 2021, there were 30 passengers and 116 crew members seriously injured because of turbulence out of the millions of people who fly every year according to the FAA data.
The FAA defines serious injuries as those that require hospitalization for more than 48 hours, or result in fractured bones, severe muscle or tendon damage, harm to internal organs or second- or third-degree burns. Airlines aren't required to report more minor injuries, meaning the total number of injuries is underreported.
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limate change is causing more instability in the jet streams and making wind speeds faster, which will cause more turbulence when the skies appear clear. By 2050, pilots around the world can expect to encounter at least twice as much severe clear-air turbulence, Williams found in his research.
Clear-air turbulence is what caused a Lufthansa flight traveling from Texas to Germany to unexpectedly drop 1,000 feet this past week. The sudden turbulence occurred during meal service, when crew and passengers were moving around the cabin. The plane was diverted to Washington Dulles International Airport, and
seven people were taken to the hospital with minor injuries.
In all, about 65,000 flights encounter moderate turbulence every year, and about 5,500 encounter severe turbulence,
according to the National Center for Atmospheric Research.
Turbulence-related damage, delays and injuries cost airlines up to $500 million per year.