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NTSB Report
August 14, 1990 · Air Tractor AT-301 · N4433S
Corning, AR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
August 14, 1990
Injury Outcomes
1 injury (1 serious injury)
Location
Corning, AR
Aircraft
Air Tractor AT-301
Tail Number
N4433S
Operator
Rex & Tommy Harmon
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
FTW90DPG08
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.
NTSB Probable Cause
BLOCKAGE OF THE CARBURETOR AIR INTAKE BY A COLLAPSED AIR INDUCTION HOSE DUE TO IMPROPER MAINTENANCE BY AN UNKNOWN PARTY.
Full 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.
Flight
Event TypeAccident
Event Time11:45 CDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAir Tractor AT-301
Tail NumberN4433S
Aircraft CategoryAir
DamageSubstantial
OperatorRex & Tommy Harmon
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R1340-S3H1 · Reciprocating · 600
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 53 · Second Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point70 F
Altimeter30.00 inHg
Observation Time17:05
Weather SourceWFAC