As temperatures climb in Phoenix, Arizona, more than 40 flights have been cancelled - because it is too hot for the planes to fly.
Phoenix flights cancelled because it's too hot for planes - BBC News
Phoenix flights cancelled because it's too hot for planes - BBC News
The local Fox News affiliate in Phoenix said the cancellations mostly affected regional flights on the smaller Bombardier CRJ airliners, which have a maximum operating temperature of about 118F (48C).
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