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The Federal Aviation Administration is asking air ambulance companies to adopt better safety practices to curb a deadly surge in rescue helicopter crashes that have killed 60 people since 2000. A USA TODAY investigation July 18-19 found that 84 air ambulances have crashed since 2000, more than double the number of crashes during the previous five years. The newspaper’s investigation, which included an analysis of 275 air ambulance accidents since 1978, found that government inspections of the industry have been haphazard and inadequate.