 Cunningham was forced to make an emergency landing.He put the aircraft down at , onto the runway, but it careered through the perimeter of the airfield and across a public road where it collided with a car carrying six passengers who were killed; no-one died on board the HS-125.Cunningham suffered two crushed vertebra but he remained chief test pilot at Hawker Siddeley after the accident until 1978 when British Aerospace was formed.