Air Wisconsin reached a tentative agreement with its pilot union, averting the threat of a strike that would likely have grounded the airline. The airline’s 600 pilots had been seeking improvements in wages, retirement, job security, and rest provisions since their previous contract expired in July 1999. A strike seemed all but certain on Sunday, 12 August, when a 30-day cooling off period ended, and Air Wisconsin had cancelled a number of flights on Saturday and Sunday to reduce the potential for disruptions. A final round of talks overseen by the National Mediation Board resulted in the agreement, which will now be submitted to the pilots for ratification. Air Wisconsin flies United Express services from Chicago and Denver to 42 cities in the USA. Its fleet includes eighteen BAe 146s, as well as Bombardier CRJs and Dornier 328s.