Accident Robinson R22 Beta N224SW, Wednesday 3 October 1990

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Date:	Wednesday 3 October 1990
Time:	11:00 LT
Type:	Robinson R22 Beta
Owner/operator:	Crest One Helicopter
Registration:	N224SW
MSN:	1234
Year of manufacture:	1989
Total airframe hrs:	682 hours
Engine model:	Lycoming O-360-J2A
Fatalities:	Fatalities: 0 / Occupants: 2
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Opa Locka, FL - United States of America
Phase:	Approach
Nature:	Training
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
THE CFI STATED THAT DURING THE DOWNWIND LEG, HE WAS EXPLAINING A MANEUVER TO A STUDENT WHILE SIMULTANEOUSLY REDUCING THROTTLE & LOWERING COLLECTIVE. HE DID NOT APPLY CARBURETOR HEAT. THE TURN TO BASE WAS SLOW & AFTER REALIZING THAT THE FLT WOULD NOT LAND AT THE PLANNED TOUCHDOWN POINT, THE CFI APPLIED POWER TO GO-AROUND BUT THE ENG WAS SLOW TO RESPOND. DURING THE RUN-ON LANDING, THE HELICOPTER ROLLED OVER AFTER COLLIDING WITH A DIRT MOUND. THE ENG & ITS SYSTEMS WERE EXAMINED BY AN FAA AIRWORTHINESS INSPECTOR WHO REPORTED THAT THERE WAS NO FAILURE OR MALFUNCTION. ACCORDING TO THE ICING PROBABILITY CHART USING TEMP & DEW POINT TAKEN AT AN ARPT 12 NM SE OF THE ACCIDENT SITE 10 MINUTES BEFORE THE ACCIDENT, CONDITIONS WERE FAVORABLE FOR VISIBLE ICING AT GLIDE & CRUISE POWER.

Probable Cause: FAILURE TO USE CARBURETOR HEAT.

Accident investigation: