Accident
While approaching Michigan City on a taxi flight from Chicago, the twin-engine airplane went out of control and crashed into Lake Michigan a few miles offshore. The aircraft was destroyed and all four occupants were killed.
Investigation
According to the official findings, the probable cause was a loss of control on final approach due to inadequate maintenance and inspection. Contributing factors included issues with the flight control surfaces: the elevator assembly attachments were reported as binding, loose, or missing parts and fittings. Additionally, improper IFR operation was noted, along with adverse weather conditions including low ceiling, fog, and visibility of half a mile or less. Physical evidence included a pivot bolt, part number AN4-23A, found on the floor of the fuselage, with a washer and nut missing. The destination altimeter setting was not obtained during the flight.