Accident Details
Date
Monday, July 16, 1990
NTSB Number
SEA90LA137
Location
OVANDO, MT
Event ID
20001212X23835
Coordinates
47.069293, -113.040496
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1
Probable Cause and Findings
THE PILOT DID NOT MAINTAIN ROTOR RPM AFTER A COMPRESSOR ASSEMBLY BLADE FAILURE. A RELATED FACTOR WAS AN INADEQUATE AUTOROTATION RESULTING IN A HARD LANDING.
Aircraft Information
Registration
N439DS
Make
SIKORSKY
Serial Number
58-658
Engine Type
Reciprocating
Registered Owner (Historical)
Name
ARIS HELICOPTERS LTD
Address
1138 COLEMAN AVE
Status
Deregistered
City
SAN JOSE
State / Zip Code
CA 95110
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# SEA90LA137