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NTSB Report
September 1, 2021 · Air Tractor AT-401B · N5081W
Storm Lake, IA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 1, 2021
Injury Outcomes
No injuries (1 uninjured)
Location
Storm Lake, IA
Aircraft
Air Tractor AT-401B (1996)
Tail Number
N5081W
Operator
Barts Flying Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
CEN21LA393
The commercial pilot reported that he was attempting to land on dew-covered grass runway following an aerial application flight when the airplane overran the runway and nosed over coming to rest inverted. The airplane sustained substantial damage to the rudder and horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. At the time of the accident the airplane was landing on runway 31 with wind 110o at 4 knots. The pilot reported that the accident was the result of the airplane being too fast during the final approach with a tailwind and the dew-covered runway.
NTSB Probable Cause
The pilot’s failure to maintain adequate airspeed during a landing approach with a tailwind that resulted in a landing overrun and impact with terrain.
Full Narrative
The commercial pilot reported that he was attempting to land on dew-covered grass runway following an aerial application flight when the airplane overran the runway and nosed over coming to rest inverted. The airplane sustained substantial damage to the rudder and horizontal stabilizer. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. At the time of the accident the airplane was landing on runway 31 with wind 110o at 4 knots. The pilot reported that the accident was the result of the airplane being too fast during the final approach with a tailwind and the dew-covered runway.
Flight
Event TypeAccident
Event Time08:32 CDT
Nearest AirportStorm Lake Municipal Airport (0nm)
Runway31
Runway Length2000 ft
Runway Width150 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAir Tractor AT-401B
Tail NumberN5081W
Aircraft CategoryAir
DamageSubstantial
OperatorBarts Flying Service
Operating RulePart 137
Engines1
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · Second Class · None
Conditions
ConditionsVMC
LightDaylight
Wind120° @ 6 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point64 F / 59
Altimeter30.01 inHg
Observation Time08:15
Weather SourceWFAC