Elizabeth Angela McBeath, 20, a resident of Rockville since 1973, an honors graduate of Magruder High School and a senior at Smith College, died Oct. 17 in a plane crash at the Beverly Farms, Mass., Airport.

A spokesman for the Wenham, Mass., police department said Miss McBeath was a passenger in a Piper Cherokee Warrior that burst into flames as it landed at the airport.

Police said the plane's other passenger also died and that a pilot instructor and a student pilot were hospitalized. The accident was under investigation by the FAA, police said.

Miss McBeath was twice elected president of her class at Magruder. She was a member of the First Baptist Church of Washington and its Christian Education Board.

At Smith, she was an English major and was active in church organizations and college singing groups. She was on the Dean's List.

Miss McBeath was born in Syracuse, N.Y., and lived in Lexington, Ky., before moving to Rockville.

Survivors include her parents, Dr. and Mrs. William McBeath, a sister, Rebecca, and a brother, William Jr., all of Rockville; three grandparents, Mr. and Mrs. B. H. McBeath of Brandenburg, Ky., and Mrs. J. Hobart Nickell of Milan, Ind., and a great-grandmother, Mrs. Franklin Walter of Hazel Green, Ky.