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AIR FORCE Magazine / May 2008 65 A B-1B takes off from an air base in South- west Asia. Class A Aircraft Mishaps (As of Sept. 30, 2007) (Loss of life, permanent total disability, destroyed aircraft, or more than $1 million in property damage) Data provided by USAF Fiscal Year 10-yearaverage 25 20 15 10 5 0 fatalities destroyed aircraft Fiscal Year 10-year average: 1.27 1.6 1.5 1.4 1.3 1.2 1.1 1.0 0.9 98 99 00 01 02 03 04 05 06 07