It's been a rocky period for Bombardier, Inc. ( TSX:BBD.B ) investors over the past few years, and that's an understatement, to say the least. Investors who'd held Bombardier in their portfolios at the start of 2015 would have seen the value of their shares drop an astonishing 75% in just 12 short months. And this was supposed to be one of Canada's heralded blue-chip companies, and one of the world's leading transportation firms. The dividend was cut, and there was a host of questions about the company's short-term liquidity, and the company's solvency had suddenly come into question. Many wondered if this spelled the end for Bombardier. At one point, shares traded as low as $0.72. How did it get this bad? Most of the problems stemmed from the company's troubled CSeries program. In developing the CSeries, a family of narrow-body, twin-engine, medium-range jet airliners, the program had been plagued by technical delays and cost overruns.