The Level Best Campaign

Click here if you have problems playing the Levelbust 2 DVD
(now out of stock, but you can view the video here
courtesy of Scott International Procedures)

Latest updates March 2012 here

The Scale of the Problem:
NATS figures for Level Busts & Losses of Separation
2004 to end of March 2012
Click to enlarge


Source: NATS Division of Safety
SSE Explanation here

The bars represent reported Level Busts – this is not the whole story.

The only statistics we are sure we capture correctly are the Level Busts which cause a loss of separation.

We estimate that the number of reported Level Busts represents approximately 30% of the actual number of Level Busts

During this campaign, we would like to see:

  • An INCREASE in the proportion of level busts which are reported, we want all events to be reported because we need to understand the full scale of the problem

  • Level Busts resulting in a loss of separation DECREASE

You will find articles and posters, which you are welcome to use, as well as other information on Level Busts and tips on how to avoid them.

If you have a comment about Level Busts, or about this campaign, please e-mail us on the feedback form: every piece of information, comment, or experience is very useful to us. We are especially interested in which sector of the aviation industry you are employed in. Please use the drop down box on the feedback page to indicate this. Also, if you'd like to be informed when this website is updated please tick the box on the feedback form.


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