Air Canada flight attendants on strike
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When Air Canada pilots went on strike in September 1998 for 13 days, all of the carrier's more than 600 daily flights were grounded, stranding passengers and costing the airline C$133m ($96m; £71m) before a negotiated deal was reached.
Air Canada has halted operations as more than 10,000 flight attendants went on strike after a deadline to reach a new labor deal passed