Who's in Control?

S18 E6: February 25, 2009. A state-of-the-art Boeing 737 coming into Amsterdam Schiphol Airport stalls and drops straight from the sky to Earth, less than half a mile from the runway, killing nine people. It’s the third crash of a passenger jet in the past six weeks. Equally troubling: the 737 is one of aviation’s most popular planes, with more than five thousand of them in the skies, carrying about one and a half million passengers a day. Investigators must quickly determine if there’s a flaw with the plane before another, more deadly, calamity occurs.