Flight attendants at WestJet, Canada's second-largest airline, have threatened to strike over unpaid workVANCOUVER, British Columbia -- Flight attendants at WestJet, Canada's second-largest airline, threatened Thursday to go on strike over unpaid work, a move that could disrupt travel during the busy summer season. We want a fair contract for our members that recognizes the value of flight attendants’ work.” A key issue in the dispute centers on how flight attendants are paid for duties performed while they are still on the ground. Last summer flight attendants at Air Canada, the country’s largest carrier, went on strike with unpaid groundwork one of the key issues. He said it’s no accident the union waited until a long Canadian weekend in August to threaten strike action.