Accident Air Tractor AT-301 N4433S, Tuesday 14 August 1990

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Date:	Tuesday 14 August 1990
Time:	11:45 LT
Type:	Air Tractor AT-301
Owner/operator:	Rex & Tommy Harmon
Registration:	N4433S
MSN:	301-0093
Year of manufacture:	1977
Engine model:	P&W R1340-S3H1
Fatalities:	Fatalities: 0 / Occupants: 1
Other fatalities:	0
Aircraft damage:	Substantial
Category:	Accident
Location:	Corning, AR - United States of America
Phase:	Initial climb
Nature:	Agricultural
Departure airport:
Destination airport:
Investigating agency:	NTSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
A TOTAL POWER LOSS OCCURRED SHORTLY AFTER TAKEOFF AND THE PILOT PERFORMED A FORCED LANDING IN A MUDDY RICE/BEAN FIELD. AFTER LANDING THE AIRPLANE BOUNCED ONCE AND NOSED OVER. FAA INSPECTORS FOUND THAT THE AIR INDUCTION HOSE WAS COLLAPSED AND THAT A 60 DEGREE ALUMINUM ELBOW WAS LOOSE FROM ITS CLAMPS, BLOCKING THE AIR ENTRANCE TO THE CARBURETOR. THE OPERATOR SUBSEQUENTLY TEST RUN THE ENGINE FINDING NO ADDITIONAL DISCREPANCIES.

Probable Cause: BLOCKAGE OF THE CARBURETOR AIR INTAKE BY A COLLAPSED AIR INDUCTION HOSE DUE TO IMPROPER MAINTENANCE BY AN UNKNOWN PARTY.

Accident investigation: