Cool It, Says The FAA

Aircraft engines may require the operator to “cool it” down before shutting it down. Improper cool down could lead to sudden damage or even latent damage resulting in future failure. The Federal Aviation Administration (FAA) advises to always use the engine operating checklist and follow the manufacturer’s current operating procedures, and always heed the “Notes, Cautions, and Warnings” for the engine make and model, piston or turbine.