Turbulence is rarely a threat to passenger or pilot control of the aircraft. But an ATSB report found that passengers being thrown up and out of their seat during turbulence was the second most common type of head injury on aircraft. In most accidents,injuries occurred because there was no warning of turbulence, it was to late for  passengers fasten their seat belts when the turbulence hit…

 

Cabin crew are trained to ensure passengers are safe at all times, and are aware of the dangers of in-flight turbulence. All cabin crew are first-aid trained to look after passengers who are injured.It is for this reason that passengers should follow any requests by cabin crew – including fastening your seat belt, securing carry-on baggage, or returning to their seat when asked.

 

** If you want to know what is turbulence, how serious can it be, common types of turbulence, how to stay safe and how to prevent it, do not miss:
Staying Safe against  In-flight Turbulence
ATSB (Australia Safety Bureau) / Aviation Safety Bulletin -June 2008-