American airlines raises plane limits for extreme Phoenix heat

American Airlines is taking a proactive approach with the extreme temperatures in Phoenix. The flights were operated by Mesa Airlines and SkyWest Airlines, which operate the Bombardier CRJ 700/900 aircraft. Due to regulations, the aircraft could not depart Phoenix if the temperature was over 117.86 degrees. Within the past year, American worked with Bombardier and the Federal Aviation Administration to ensure that when the temperature rises, planes can still take off.