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Single Turbine Engine Aircraft
Is Two safer than One? No!
Is Two safer than One? No!
Overall Fatal Accident Rates
Fatal Accidents
Hours millions
Fatal Accident Rate per million hours
29
5.40
5.37
0
0.603
0
0
0.05
0
29
6.053
4.79
There have been 29 fatal accidents to the C208 in US commercial operations up to the end of 2005 and zero worldwide for the periods where data is available for PC-12 and TBM 700, covering 6.053 million hours. (Note that the TBM 700 utilisation is almost entirely private/corporate). The overall Fatal Accident Rates are summarized below:
Thus, the data available for all operations to date gives a Single-Engine Turboprop (SET) overall Fatal Accident Rate (FAR) in commercial operations of 4.79 per million hours. The accidents concerned, see Table 3.2, show a higher rate in the early years of C208 operations, with 8 fatal accidents from 1985 to 1990 inclusive in which 0.51 million hours were flown. These include an accident where the problem has been addressed by a design change, such that it is highly unlikely to recur, and a relatively high incidence of icing accidents addressed by a campaign by the manufacturer aiming at
Fatal Accidents
Hours millions
Fatal Accident Rate per million hours
21
4.89
4.29
0
0.603
0
0
0.05
0
21
5.543
3.79
New Data October 2006
The overall Fatal Accident Rate in commercial operations is 3.79 per million hours.