Complex sentence: The original flight crew was replaced with a new one at Albuquerque, and after a brief refueling stop at what is now Nellis Air Force Base in Las Vegas, the plane took off on a clear night.
Split into simpler sentences: The original flight crew was replaced with a new one at Albuquerque. After a brief refueling stop at what is now Nellis Air Force Base in Las Vegas, the plane took off on a clear night.