Content Description The Donald E. Burlingame Boeing 307 Stratoliner Crash Photographs is a small collection consisting of six photographs documenting the crash of a Boeing 307 Stratoliner near Alder, Washington on March 18, 1939. The plane, which was a prototype under registration number NX19901, crashed during a demonstration flight. The Civil Aeronautics Authority, Air Safety Board eventually concluded that the accident had been caused by structural failure of the wings and horizontal stabilizers...