The Southwest Airlines Boeing 737 that left Chicago was supposed to end up in Branson, Mo. Instead, it landed several miles away, at a completely different airport, and no one is saying why the pilot landed it there.

No one Monday at the NTSB, FAA or Southwest would discuss publicly an incident under investigation.

M. Graham Clark Airport, where the pilot did land the plane, is only a few miles away from Branson.

Passengers said the pilot hit the brakes hard. The Clark runway is 3,738 feet long, while Branson's runway is 7,140 feet long. The plane reportedly stopped with about 40 feet to spare, and those bound for Branson were less than nine highway miles from their intended destination. The plane took off again, to the cheers of a crowd gathered.

The pilot and co-pilot have been put on paid leave pending the outcome of the investigation.