The aerospace component manufacturer has a Boeing problem.Issues at Boeing are further delaying a long-awaited rebound at supplier Triumph Group (TGI 4.41%).Shares of the aerospace component manufacturer traded down as much as 11.8% this week, according to data provided by S&P Global Market Intelligence, and were down 6% for the week heading into the close on Friday, as a strong earnings report was offset by weak guidance about the quarters to come.An uncertain journey gets a new twistTriumph Group is one o ...