The Financial Post reports in its Wednesday edition Air Canada has found itself at odds with its flight attendants' union over the number of crew members it wants to have aboard some of its flights. The Post's Scott Deveau writes the dispute brings to the forefront an issue that has been presented to successive governments in Ottawa as the airline industry takes steps to again have Transport Canada align its requirements with international standards for how many flight attendants are required per passenger on board their flights. Canadian aviation regulations require one flight attendant per 40 passengers, while the international standard, including in the United States and Europe, is one per 50 passenger seats. Air Canada filed an application for an exemption last month to move to one flight attendant per 50 passenger seats on its narrow-body fleet shortly after rival WestJet was granted one for its own aircraft. Calin Rovinescu, Air Canada chief executive officer, said at an investor day in Toronto this week the airline was also exploring the possibility of doing the same for its wide-body aircraft. He said the exemption for the narrow-body fleet alone would save Air Canada roughly $30-million a year.