Pilots for Allegiant Air are calling into question the safety of the planes they fly, saying the company's cost-saving measures are putting passengers at risk. The union representing the pilots sent a letter to Allegiant's board saying that the company does the bare minimum to maintain planes, CBS News reports. The letter goes into detail about 38 potentially perilous incidents that took place between January and March of this year involving smoke in cockpits, pressurization issues, engine failures, and radar problems.