After a January 29 collision between an Army helicopter and an American Airlines regional jet killed 67 people, the Federal Aviation Administration adopted new rules effectively barring flights to the busy airport just outside the nation's capital when the Marine One helicopter is transporting the president.

The filings over the collision of an American Airlines plane and an Army helicopter last month appear to be the first such claim and signal the start of a long legal fight.

Since the January 29 collision between an American Airlines passenger jet and a U.S. Army Black Hawk helicopter, which resulted in the deaths of 67 people,

The crew of the Army helicopter that collided in midair with an American Airlines jet near Washington, D.C.'s Ronald Reagan National Airport may have had inaccurate altitude readings in the moments before the crash,

The crash of a Delta Airlines plane in Toronto is the fourth major aviation disaster in North America in the last month. The deadliest crash was a midair collision between an Army helicopter and an American Airlines flight that killed 67 near Washington.

The Washington Capitals and Tampa Bay Lightning will honor the victims of the DCA plane crash, one month to the day of the horrific accident.

The maneuver involving American Airlines Flight 2246 from Boston Logan Airport occurred around 8:20 a.m. on Tuesday.