Accident Hiller UH-12E N157HA, Monday 27 June 1988

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Date:	Monday 27 June 1988
Time:	07:45 LT
Type:	Hiller UH-12E
Owner/operator:	Helicopter Minit-men,inc.
Registration:	N157HA
MSN:	HA3057
Total airframe hrs:	3356 hours
Engine model:	Lycoming VO-540-C2A
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Cherry Creek, NY - United States of America
Phase:	Manoeuvring (airshow, firefighting, ag.ops.)
Nature:	Agricultural
Departure airport:	Cherry Creek, NY
Destination airport:	(NONE)
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE PILOT REPORTED THAT DURING AN AERIAL APPLICATION OPERATION, HE HEARD A NOISE THAT WAS FOLLOWED BY A DECAY IN ROTOR RPM. SUBSEQUENTLY, HE WAS FORCED TO LAND IN AN AREA OF TALL TREES & THE HELICOPTER WAS DAMAGED. AN INVESTIGATIONREVEALED THAT A CONNECTING ROD ASSEMBLY HAD FAILED.

Probable Cause:

Accident investigation: