CAP 763
CAP 763 Aviation Safety Review - Contact Us
CAP 763 Aviation Safety Review - Contact Us
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<strong>CAP</strong> <strong>763</strong> Aviation Safety Review 2005<br />
UK Public Transport - Helicopters<br />
Number of occurrences<br />
400<br />
350<br />
300<br />
250<br />
200<br />
150<br />
100<br />
50<br />
0<br />
Accidents<br />
Serious incidents<br />
Incidents<br />
Total occurrence rate (3 yr ma)<br />
1995 1996 1997 1998 1999 2000 2001 2002 2003 2004<br />
2500<br />
2000<br />
1500<br />
1000<br />
500<br />
0<br />
Rate of occurrences (per million hours)<br />
Figure 4.17 Number and rate of occurrences<br />
4.12.3 Figure 4.18 shows the rate of events of highest significance, broken down by quarter,<br />
between January 2001 and December 2004.<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
Jan01-Mar01<br />
Apr01-Jun01<br />
Jul01-Sep01<br />
Oct01-Dec01<br />
Jan02-Mar02<br />
Apr02-Jun02<br />
Jul02-Sep02<br />
Oct02-Dec02<br />
Jan03-Mar03<br />
Rate (per million hours)<br />
Apr03-Jun03<br />
Jul03-Sep03<br />
Oct03-Dec03<br />
Jan04-Mar04<br />
Apr04-Jun04<br />
Jul04-Sep04<br />
Oct04-Dec04<br />
Figure 4.18 Rate of events of highest significance<br />
4.12.4 Using the data for all operations between 1995 and 2004, there has been<br />
approximately one occurrence per 1,200 flights. In terms of events of highest<br />
significance, there has been approximately one per 64,000 flights.<br />
8 August 2006<br />
Chapter 4 Page 23
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