Accident Sikorsky H-34G N8503J, Wednesday 1 December 1993

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Date:	Wednesday 1 December 1993
Time:	17:25 LT
Type:	Sikorsky H-34G
Owner/operator:	Private
Registration:	N8503J
MSN:	138471
Total airframe hrs:	6203 hours
Engine model:	Curtis Wright 989C9HE2
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Walterboro, SC - United States of America
Phase:	Taxi
Nature:	Unknown
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE HELICOPTER WAS CONDUCTING LONG LINE EXTERNAL LOGGING OPERATIONS. THE PILOT STATED THAT HE WAS AT A HOVER, WITHOUT A LOAD, AND THE AIRCRAFT THROTTLE SEIZED AT ABOUT HALF THROTTLE. HE EXECUTED A FORCED LANDING INTO A GROUP OF TREES, AND THE AIRCRAFT RECEIVED SUBSTANTIAL DAMAGE. INSPECTION OF THE THROTTLE AND THROTTLE LINKAGE TO THE ENGINE DID NOT REVEAL ANY MALFUNCTION.

Probable Cause: The seizure of the aircraft throttle to engine linkage for unknown reasons.

Accident investigation: