Accident Bell 47G N73DB, Saturday 16 March 1985

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Date:	Saturday 16 March 1985
Time:	15:45 LT
Type:	Bell 47G
Owner/operator:	Thomas. Luipersbeck
Registration:	N73DB
MSN:	1277 DBA
Total airframe hrs:	58689 hours
Engine model:	FRANKLIN 6V-335-A
Fatalities:	Fatalities: 0 / Occupants: 3
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Erin, TN - United States of America
Phase:	Approach
Nature:	Unknown
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
AFTER A POWER LOSS AT LOW ALT. DURING APPROACH TO TOUCHDOWN,THE PILOT BLED OFF ROTOR RPM ATTEMPTING TO CLEAR POWER LINES ACROSS HIS APPROACH PATH. THIS RESULTED IN A LACK OF ROTOR ENERGY NECESSARY FOR AN AUTOROTAITON LANDING. A HARD LANDING RESULTED. CARBURETOR HEAT WAS NOT USED EXCEPT DURING INITIAL RUNUP AND WEATHER CONDITIONS WERE FAVORABLE FOR CARBURETOR ICE FORMATION.

Probable Cause:

Accident investigation: