Analysis of North America Helicopter Accidents 2012～2018 Based on NTSB Data
In ordered to explore the risks of general aviation helicopter accidents,this study collects 874 helicopter accident records during 2012 to 2018 from the National Transportation Safety Board(NTSB)dataset.The accident records are used to examine the distribution of accident frequencies and ratios of different accident severities under the factors of time,flight plan,pilot,helicopter and meteorological condition by descriptive statistics and chi-square tests.The results of this study can provide reference for operation safety management of general aviation helicopters in China.
NETL
NSTL
万方数据
