LEWIS RUN — Two occupants of a small aircraft refused medical treatment after a crash on Runway 3/2 at the Bradford Regional Airport on Saturday.

Lewis Run-based state police said at 10:09 a.m., a 1943 N75 Boeing Stearman biplane, blue and yellow in color, was landing at the airport when, upon contact with the ground, the tires of the plane locked up and flipped the aircraft, which came to rest upside down on its wings.

The pilot and passenger, neither of whom were identified by state police, were wearing 5-point harness seatbelts during the incident and refused medical treatment while at the scene, state police said.

Assisting at the scene were Lafayette Township Volunteer Fire and Rescue Department, Bradford City ambulance, McKean County Emergency Management and crew at the airport.

The aircraft was flipped back onto its wheels and towed to the hangar, where the investigation will be taken over by the Federal Aviation Administration, state police said.