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Aviation

Volume 497: debated on Tuesday 13 October 2009

To ask the Minister of State, Department for Transport what assessment he has made of trends in the rate of (a) air proximity incidents and (b) risk-bearing incidents in UK airspace in each of the last five years. (291492)

I am informed by the independent UK Airprox Board that the number of air proximity events for commercial air transport and general aviation has declined during the period 2004 to 2008, as set out in the following table.

During this period, the number of risk bearing events (airprox categories A and B) for commercial air transport fell from eight to two and for general aviation from 55 to 39.

Military airprox are a matter for the Ministry of Defence. Full details of airprox reports and analysis are to be found at:

www.airproxboard.org.uk

Commercial Air Transport Airprox

Category1

2004

2005

2006

2007

2008

A

1

1

0

0

0

B

7

7

6

5

2

C

67

78

68

60

58

D

4

1

0

0

1

Total

79

87

74

65

61

General Aviation Airprox

Category

2004

2005

2006

2007

2008

A

13

16

10

8

8

B

42

41

36

30

31

C

71

75

57

65

55

D

4

1

0

0

4

Total

130

133

103

103

98

1 There are four airprox categories:

A—Risk of Collision: An actual risk of collision existed

B—Safety not assured: The safety of the aircraft was compromised

C—No risk of collision: No risk of collision existed

D—Risk not determined: Insufficient information was available to determine the risk involved, or inconclusive or conflicting evidence precluded such determination

A ‘risk-bearing’ airprox is one that falls into category A or B.