Flight Delay

Passengers say the takeoff was already delayed when the pilot came
on the intercom to announce: "There's a warning light for the
thermal expander valve on the number two engine and I will not fly
until it is replaced. Please return to the terminal waiting room."

The passengers were off the plane only ten minutes when they were
told to get aboard again. One concerned lady asked a flight
attendant, "Did they get the new thermal expander valve already?"

The attendant said, "My lands, no! There's not one of those things
within a thousand miles. They got us a new pilot."