Accident Bell 47G-5 N1477W, Wednesday 4 July 1984

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Date:	Wednesday 4 July 1984
Time:	08:30 LT
Type:	Bell 47G-5
Owner/operator:	Gg Ag Service, Inc.
Registration:	N1477W
MSN:	7938
Total airframe hrs:	2290 hours
Engine model:	Lycoming VO-435-B1A
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Penn Run, PA - United States of America
Phase:	Manoeuvring (airshow, firefighting, ag.ops.)
Nature:	Agricultural
Departure airport:	Penn Run, PA
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE PLT WAS SPRAYING A POTATOE FIELD WITH A LIGHTLY LOADED HELICOPTER WHEN THE ENG FAILED. AT THAT TIME, THE HELICOPTER WAS ABOUT 10 FT AGL IN A SLIGHT RIGHT TURN & AT APRX 35 MPH. THE PLT FLARED TO STOP THE FORWARD MOVEMENT & LANDED, BUT THE TAIL ROTOR SECTION CONTACTED THE GROUND & SEPARATED FROM THE TAIL BOOM. AN EXAM OF THE ENG REVEALED THAT THE #6 CONNECTION ROD HAD FAILED & PUNCTURED THE CRANKCASE.

Probable Cause:

Accident investigation: