Accident Details
Date
Thursday, June 27, 1991
NTSB Number
SEA91FA143
Location
INDEX, WA
Event ID
20001212X17377
Coordinates
47.840507, -121.429901
Aircraft Damage
Destroyed
Highest Injury
Serious
Fatalities
0
Serious Injuries
2
Minor Injuries
0
Uninjured
0
Total Aboard
2
Probable Cause and Findings
THE CONTROL INTERFERENCE BY THE MECHANIC WHEN HE INADVERTENTLY RAISED THE COLLECTIVE PITCH AND THE COPILOT'S FAILURE TO ATTEND THE FLIGHT CONTROLS. FACTORS RELATING TO THE ACCIDENT WERE THE MOTION SICKNESS OF THE MECHANIC, INADEQUATE COLLECTIVE PITCH CONTROL LOCKING MECHANISM UTILIZED BY THE COMPANY, AND ADMINISTRATIVE TASKS THAT DIVERTED THE CO-PILOT'S ATTENTION FROM ATTENDING THE FLIGHT CONTROLS.
Aircraft Information
Registration
N6959R
Make
SIKORSKY
Serial Number
64002
Engine Type
Turbo-shaft
Registered Owner (Historical)
Name
ERICKSON AIR CRANE CO LLC
Address
3100 WILLOW SPRINGS RD
Status
Deregistered
City
CENTRAL POINT
State / Zip Code
OR 97502-9362
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# SEA91FA143