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20 ANNUAL SAFETY REVIEW 2007
Figure 13 presents the trend of the top six categories over the decade (three-year
moving averages). The sharp rise for the “unknown” category for the years
2005–2007 is probably due to uncompleted accident investigations. When more
investigation results become available the trend for the latest years is expected to
change.
FIGURE 13 Proportion of top four accident categories — Fatal accidents — Helicopter commercial transport
operations
4
24
04
X4
V4
U4
S4
Q4
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3.0 COMMERCIAL AIR TRANSPORT, AIRCRAFT OVER 2 250 KG MTOM
ANNUAL SAFETY REVIEW 2007 21
This chapter provides data on accidents to aircraft involved in general aviation
and aerial work. The information provided in this chapter is based on data obtained
from ICAO.
In ICAO documents, the term “aerial work” is defined as an aircraft operation in
which an aircraft is used for specialised services such as agriculture, construction,
photography, surveying, observation and patrol, search and rescue, or aerial advertisement.
ICAO defines as “general aviation” all civil aviation operations other than scheduled
or non-scheduled air transport operations for remuneration or hire or aerial
work.
For the decade 1998–2007, the distribution of fatal accidents by type of operation
is as shown below.
FIGURE 14 Aeroplanes over 2 250 kg —Fatal accidents—EASA MS
FIGURE 15 Helicopters over 2 250 kg—Fatal accidents—EASA MS
4.0 GENERAL AVIATION
AND AERIAL WORK,
AIRCRAFT OVER 2 250 KG MTOM
Other/Unknown: 43 %
Business: 13 %
Pleasure: 19 %
Ferry and Positioning: 19 %
Flight training/
Instruct: 6 %
Other/Unknown: 21 %
Search and Rescue: 11 %
Logging: 25 %
Agricultural: 16 %
Construction and
external load: 16 %
Fire fighting: 11 %
Unknown: 15 %
Agricultural: 5 %
Other: 25 %
Fire fighting: 55 %
Unknown: 6 %
Business: 15 %
Pleasure: 32 %
Flight training/
Instruct.: 15 %
Other: 32 %
Distribution by
Distribution by
type of aerial work
type of aerial work
type of general aviation
type of general aviation
22 ANNUAL SAFETY REVIEW 2007
TABLE 3 Aircraft over 2 250 kg — Number of accidents, fatal accidents and fatalities by type of
aircraft and type of operation—Aircraft registered in EASA MS only
Aircraft
type
Operations
type
Period Number of
accidents
Of which,
fatal
accidents
Fatalities
on board
Ground
fatalities
Aeroplane Aerial
work
1996–2005
(average)
5 2 4 0
2006
(total)
2 0 0 0
2007
(total)
4 3 4 0
Aeroplane General
aviation
1996–2005
(average)
15 5 17 ‹1
2006
(total)
19 7 16 0
2007
(total)
13 4 5 0
Helicopter Aerial
work
1996–2005
(average)
6 2 3 ‹1
2006
(total)
7 1 6 0
2007
(total)
8 1 0 1
Helicopter General
aviation
1996–2005
(average)
4 1 2 0
2006
(total)
8 2 7 0
2007
(total)
4 3 10 0
Table 3 provides an overview of the number of accidents and fatal injuries since
1996. The number of accidents in aerial work operations is similar for aeroplanes
and helicopters for the decade 1996–2005. In recent years the number of helicopter
accidents in this type of operation is more than double than that for aeroplanes.
In general aviation the small number of accidents involving helicopters in comparison
to aeroplanes is probably a reflection of the relatively lower number of
helicopters used in this type of operation.
4.0 GENERAL AVIATION AND AERIAL WORK, AIRCRAFT OVER 2 250 KG MTOM
ANNUAL SAFETY REVIEW 2007 23
4.1 Accident categories—General aviation—Aeroplanes
It was observed that several accidents obtained from ICAO had not been classified
in terms of the accident categories. Consequently, the numbers presented provide
a low estimate of the frequency for all accident categories.
FIGURE 16 General aviation — Aeroplanes over 2 250 kg — Fatal accidents, EASA MS and foreign
　
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