BUFFALO, N.Y. —  An investigator says a crane will lift the engines from the site of last week’s deadly plane crash outside Buffalo, N.Y. Steve Chealander of the National Transportation Safety Board says the engines will be taken from the debris field on Monday.

Investigators want to scrutinize all the pieces to learn whether the plane was intact when it hit the ground.

Chealander says it remains a mystery what caused a seemingly routine descent by Continental Connection Flight 3407 to abruptly go wrong 26 seconds before the crash.

All 49 people on board and one man on the ground were killed when the plane landed on a house Thursday night about six miles from Buffalo’s airport.

(Source: Fox News)