From WBZ news:

Northbridge residents must have thought the sky was falling, when a piece of an airplane part landed on a residential street Wednesday morning.

Police got a call from a neighbor who heard the noise, went outside, and recognized the object as a piece of an aircraft.

Police Chief Thomas Melia tells WBZ NEWS RADIO, luckily the part fell in the middle of Jefferson Avenue, or someone could have been hurt.

Melia says the police contacted Worcester Airport, which contacted Boston and the F.A.A. The three foot by six foot part turned out to be a piece of a landing gear door from a 727 aircraft. The door was tracked to a Delta plane enroute from Boston to New York's LaGuardia airport.

Melia says he's not sure if the pilot knew anything was wrong, but says the plane landed safely.

F.A.A. investigators are on their way to Northbridge to pick up the door and figure out just what happened.

- Neil Harrison