Accident Details
Date
Friday, February 9, 1990
NTSB Number
DEN90FA055
Location
RAPID CITY, SD
Event ID
20001212X22539
Coordinates
44.070594, -103.229591
Aircraft Damage
Substantial
Highest Injury
Fatal
Fatalities
1
Serious Injuries
1
Minor Injuries
2
Uninjured
0
Total Aboard
4
Probable Cause and Findings
FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED (VMC), WHICH RESULTED IN A LOSS OF AIRCRAFT CONTROL. A FACTOR RELATED TO THE ACCIDENT WAS: FATIGUE FAILURE OF A COUPLING SHAFT IN THE #1 ENGINE, WHICH RESULTED IN LOSS OF POWER IN THAT ENGINE.
Aircraft Information
Registration
N64MD
Make
MITSUBISHI
Serial Number
747SA
Engine Type
Turbo-shaft
Registered Owner (Historical)
Status
Deregistered
Country
United States
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DEN90FA055