In March 2011, a helicopter crashed, sending two passengers to the hospital. The TSB investigation concluded that the chopper had been refuelled with Jet A-1 fuel instead of AVGAS 100LL. The responsible worker had only worked at the fuel station for about four months and had never refuelled a helicopter with AVGAS. The TSB report noted that the company’s training didn’t mention that some helicopters use such fuel. Although Transport Canada doesn’t set standards for refueller training programs, the TSB said the worker would have “greatly benefitted from a more detailed training program” and having aircraft reference material on hand would have helped prevent such incidents.