MONTEREY, Calif. >> A door that fell off a small plane has been found on a Monterey motel roof.

The Salinas Californian reports the door fell from a Beechcraft King Air twin-turboprop plane that took off from Monterey Regional Airport Thursday afternoon. The pilot heard a pop and turned around the land. He realized the door was missing when he was back on the ground.

But the door wasn’t discovered until Friday morning when a contractor working outside the motel noticed it.

The front desk manager at the El Castell Motel says no one heard the 75-pound door crash into the tile roof because the room below was unoccupied.

The National Transportation Safety Board will examine the door and the plane to determine why it came loose and fell.