Tuesday marked four years since the so-called "Miracle on the Hudson."

On the afternoon of January 15, 2009, a U.S. Airways jet hit a flock of geese after takeoff from LaGuardia Airport.

Pilot Chesley Sullenberger guided the plane down for a safe landing on the river.

All of the plane's 155 passengers escaped unharmed.

Sullenberger, along with his co-pilot and many of those passengers, came together yesterday at the Carolinas Aviation Museum in Charlotte, N.C.

It was a chance for many of them to see the museum's exhibit, which contains part of the plane's fuselage.