A JFK employee partially severed his finger today while closing a cargo door, authorities said.

Ronald Case, 41, was loading cargo on a plane at 2:10 p.m. at Gate 3 of Terminal 1 when his right middle finger got wedged between the door flap and the container and became partly amputated, sources said.

The cargo worker is employed by Aircraft Services International Group, a ramp service company that handles plane cargo.

The Port Authority Police Department’s medical unit rushed the man to Jamaica Hospital, where he is in stable condition.