Northwest Airlines told a federal judge in Minneapolis this afternoon the Aircraft Mechanics Fraternal Association is defying a court order banning work slow downs. Northwest says siginificantly higher than normal maintenance related delays continue to force it to delay and cancel numerous flights. Leaders of the mechanics union say the rank and file is adhereing fully to labor laws and the court order. A federal judge has set a hearing for next week to determine whether the union is violating the court order. Minnesota Public Radio's Mark Zdechlik reports...