Annual Safety Review 2007_EN(4)

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3.1.2 Fatal accident rates
In order to derive meaningful conclusions from the absolute accident numbers
presented above, the number of fatal accidents in scheduled air transport operations
was combined with the number of flights conducted by such operations.
These rates allow the comparison of safety trends, by taking into account changes
in the level of traffic.
FIGURE 5 Rate of fatal accidents in scheduled passenger operations—EASA MS and foreign registered
3.0 COMMERCIAL AIR TRANSPORT, AIRCRAFT OVER 2 250 KG MTOM
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12 ANNUAL SAFETY REVIEW 2007
Figure 5 provides the fatal accident rate per 10 million scheduled passenger flights
averaged over three-year periods.
The safety record for aircraft registered in EASA MS and conducting scheduled
passenger operations is significantly better than that for the rest of the world.
During the past decade the rate of accidents decreased from an average of four to
three accidents per 10 million flights for EASA MS.
In Figure 5, it is observed that during 2001 the rate of fatal accidents increased
significantly above the decade average. During that single year, six accidents —
involving scheduled passenger operations — occurred which represent more than
a quarter of all accidents in the decade. These accidents were a Britten-Norman
Islander with eight fatalities, a De Havilland DHC-6-300 with 20 fatalities, an
Avro RJ100 with 24 fatalities, an Antonov An-28 with two fatalities, a CASA
CN-235 with four fatalities and a Boeing 777-200 with one fatality. The last accident
involved a fatality on the ground during refuelling.
The number of fatal accidents may not necessarily give a comprehensive overview
of the safety levels. This is because an accident with a single fatality has the same
weight as an accident involving many more fatalities.
3.1.3 Fatal accidents per type of operation
The number of fatal accidents differs per type of operation. As shown in Figure 6,
worldwide (excluding EASA MS), passenger commercial air transport flights appear
to have a declining proportion in the total number of fatal accidents. Other
commercial air transport operations, such as air taxi or ferry flights, have an increasing
proportion of the total (category: other). Almost a third of all accidents
appear to involve aircraft conducting operations under this category. It is worth
noting that the proportion of accidents in this category is significantly higher than
the proportion of aircraft conducting such operations. Information on the number
of aircraft and the type of operations they are used for is not provided in this
safety review.
3.0 COMMERCIAL AIR TRANSPORT, AIRCRAFT OVER 2 250 KG MTOM
ANNUAL SAFETY REVIEW 2007 13
FIGURE 6 Fatal accidents by type of operation —Foreign aeroplanes
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For EASA MS the accidents per type of operation appear to be different, as shown
in Figure 7. The small number of accidents makes the type of operation during
which an accident occurred an almost random characteristic. However, despite
the steadily decreasing number of accidents, there is a constant occurrence of accidents
involving passenger air transport operations.
FIGURE 7 Fatal accidents by type of operation—EASA MS
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3.0 COMMERCIAL AIR TRANSPORT, AIRCRAFT OVER 2 250 KG MTOM
14 ANNUAL SAFETY REVIEW 2007
3.1.4 Accident categories
The assignment of accidents under one or multiple categories assists in identifying
　
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