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NTSB Report
August 13, 2014 · Air Tractor AT 401B · N9071Z
Cimarron, KS
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 13, 2014
Injury Outcomes
1 injury (1 serious injury)
Location
Cimarron, KS
Aircraft
Air Tractor AT 401B (2001)
Tail Number
N9071Z
Operator
Erhart Aerial Spraying
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
CEN14CA427
The pilot reported that he was setting up to spray a corn field bordered by radio antennas. He had sprayed the field previously and planned to use the same pattern this time. However, on his initial pass, he focused on the inner guy wire anchor point, which caused him to inadvertently fly between the inner and outer guy wires. When he started to pull-up, the airplane struck the outer wire, separating 7 feet of the left wing from the airplane. The pilot was able to maintain control and ultimately returned to the departure airport. However, the airplane rolled to the left when he reduced power on landing and he lost control at that time. The pilot stated that there were no problems with the airplane prior to the accident; the engine and flight controls were performing normally before the impact with the guy wire.
NTSB Probable Cause
Environmental issues-Physical environment-Object/animal/substance-Tower/antenna (incl guy wires)-Contributed to outcome
Full Narrative
The pilot reported that he was setting up to spray a corn field bordered by radio antennas. He had sprayed the field previously and planned to use the same pattern this time. However, on his initial pass, he focused on the inner guy wire anchor point, which caused him to inadvertently fly between the inner and outer guy wires. When he started to pull-up, the airplane struck the outer wire, separating 7 feet of the left wing from the airplane. The pilot was able to maintain control and ultimately returned to the departure airport. However, the airplane rolled to the left when he reduced power on landing and he lost control at that time. The pilot stated that there were no problems with the airplane prior to the accident; the engine and flight controls were performing normally before the impact with the guy wire.
Flight
Event TypeAccident
Event Time12:30 MDT
Nearest AirportDodge City Regional (1nm)
Runway14
Runway Length6899 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAir Tractor AT 401B
Tail NumberN9071Z
Aircraft CategoryAir
DamageSubstantial
OperatorErhart Aerial Spraying
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsWalter · M601-E11 · Turboprop · 750
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 61 · Second Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 9 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point61 F
Altimeter30.10 inHg
Observation Time18:52
Weather SourceWFAC