A Vickers Viscount flying the route crashed near Chase, Maryland, on May 12, 1959, with the loss of all on board.

At 4:02, the crew contacted Washington Center, reporting over Westchester, and estimating Westminster to be 15 minutes away.

In the same message, they noted that thunderstorms existed along the assigned course, and requested permission to navigate clear of the weather a little south of Westminster.

Further gyrations caused the left wing to disintegrate, opening its fuel tanks and leading to a flash fire.

The cause of the accident was determined to be a loss of control of the plane in turbulence, resulting in an involuntary steep descent, which created aerodynamic loads in excess of those for which the craft had been designed.