At about 1012 Pacific time, a Glasair SH-2 crashed following a loss of control just after takeoff from Riverside Airport. The pilot was killed. Instrument meteorological conditions prevailed and a special visual flight rules flight plan was filed. Witnesses said the airplane took off from runway 9, made a sharp left banking turn going almost inverted, then nose-dived into the ground. Witnesses also said that the engine appeared to be sputtering.