Group ends search for missing airliner that crashed into Lake Michigan in 1950, killing all 58 people on board

A group is ending a 20-year search for a plane that crashed into Lake Michigan in 1950, killing all 58 people on board, after sweeping the vast body of water using sonar technology and even getting support from an acclaimed adventure writer.

When Northwest Orient Flight 2501 crashed, it was the worst aviation disaster in U.S. history.

Valerie van Heest, executive director of the Michigan Shipwreck Association, said she has mixed feelings about ending the search, which began in 2004.