Riverton - Casper

On April 6, 1993 at 04:35 AM, Riverton - Casper experienced a crash involving Mitsubishi MU-2 Marquise, operated by Casper Air Service, with the event recorded near Casper-Natrona County Wyoming.

The flight was categorized as ambulance and the reported phase was landing (descent or approach) at a mountains crash site.

4 people were known to be on board, 4 fatalities were recorded, 0 survivors were identified or estimated. This corresponds to an estimated fatality rate of 100.0%.

Crew on board: 1, crew fatalities: 1, passengers on board: 3, passenger fatalities: 3, other fatalities: 0.

The listed crash cause is human factor. The aircraft was on an air ambulance (EMS) flight and was cleared for the ILS runway 08 approach at Casper, WY. Radar data showed the aircraft tracking and descending normally on the DME arc, until it was below radar coverage for the area. Subsequently, it collided with the top of a ridge, along the localizer centerline, before reaching the outer marker, about 8 miles from the airport. Elevation of the crash site was about 5,800 feet; minimum descent altitude before intercepting the ILS glide slope was 7,100 feet; crossing altitude at the outer marker was 6,700 feet. All four occupants were killed, a patient, two doctors and a pilot.

Aircraft reference details include registration N96JP, MSN 556, year of manufacture 1972.

Geospatial coordinates for this crash are approximately 42.8501°, -106.3251°.