Accident Details
Date
Friday, April 28, 1989
NTSB Number
NYC89FA129
Location
HERKIMER, NY
Event ID
20001213X28179
Coordinates
43.019489, -74.990829
Aircraft Damage
Destroyed
Highest Injury
Fatal
Fatalities
1
Serious Injuries
0
Minor Injuries
0
Uninjured
0
Total Aboard
1
Probable Cause and Findings
A FORCED LANDING IN UNSUITABLE TERRAIN DUE TO AN INTERNAL ENGINE FAILURE. THE ENGINE FAILURE SEQUENCE WAS INITIATED BY A FAILED OIL PRESSURE RELIEF SPRING WHICH HAD FAILED IN FATIGUE DUE TO IMPROPER PLATING OF THE SPRING. THE SPRING FAILURE CAUSED OIL STARVATION TO THE ENGINE CRANKSHAFT AND RESULTING FAILURE OF A CONNECTING ROD.
Aircraft Information
Registration
N2113U
Make
BRANTLY HELICOPTER
Serial Number
161
Engine Type
Reciprocating
Registered Owner (Historical)
Name
SALE REPORTED
Address
27 MANHATTON AVE
Status
Deregistered
City
ILION
State / Zip Code
NY 13357
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# NYC89FA129