Incident Overview
The airplane was conducting a night visual flight rules (VFR) approach over water to a coastal airport. Witnesses reported that the aircraft suddenly changed from horizontal flight to a vertical descent, descending into the ocean.
Witness Observations
According to a witness who was also flying in the area, the accident airplane passed over a "black hole" and the witness saw "strobe over strobe" before the airplane disappeared. The same witness noted that disorientation around the airport at night was common due to the ocean environment.
Environmental Conditions
The accident occurred on a clear, dark night with no moonlight illumination.
Aircraft Examination
Post-accident examination of the airframe, systems, avionics, and engine revealed no evidence of a pre-impact mechanical malfunction. The left wing leading edge was found crushed aft to the wing spar.
Pilot Information
The pilot was not instrument-rated but had received instrument training under a hood in visual flight conditions.