At the beginning of the film, the plane is first shown with propellers in full motion. Moments later in the next scene the propellers are completely motionless.
When stewardess Marge (Noel Neil) rushes to the airport in her convertible, she hurriedly parks the car outdoors without putting the top up or locking the door. No owner of a convertible (even in the early 1950's) would park her convertible for several days at an outdoor airport parking lot without putting the top up and locking the car, thus risking extended exposure to sun, rain, birds, vermin, property theft and vehicle theft during her out-of-town travels.