Two separate plane crashes in Washington, D.C., and Philadelphia occurred as one tragic crash in California reached its 25th anniversary.

The homebuilt airplane that crashed into a California warehouse earlier this month appears to have had a door ajar while in flight, according to a preliminary report by the National Transportation Safety Board.

Multiple plane crashes have occurred in the same month across the United States. Learn about the one that took place near Fullerton, California.

A small plane crashed near northbound Highway 101 in Goleta Wednesday afternoon, Santa Barbara County authorities said.

Nearly 70 people were killed in an aircraft collision Wednesday night near Washington, D.C. Are flights being delayed or canceled?

The NTSB said in its preliminary report that the pilot had made a “series of modifications” to the plane doors, which affected its “indicator system”

An amateur-built plane that slammed into a furniture warehouse near Fullerton Airport, killing the pilot and his teenage daughter and injuring 19 victims on the ground, had defects in a door that appears to have contributed to the collision.