The French pilots’ union SNLP on Friday called a one-day strike for November 14, amid a row over government plans to triple the tax on flight tickets. The union fears this would have a negative effect on French airlines. The impact of the strike on air traffic is not yet clear. Only French airlines would be affected by the action. The business newspaper Les Échos reported on Friday that a number of Air France pilots are opposed to the planned strike, because they believe the action will harm the airline just as much as the increased levies, which Air France has already passed on in full to cus…