N23720

Substantial
None

Air Tractor AT-400S/N: 400-0422

Accident Details

Date
Monday, July 31, 2006
NTSB Number
CHI06CA221
Location
Springfield, MN
Event ID
20060831X01269
Coordinates
44.214443, -94.999168
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
1
Total Aboard
1

Probable Cause and Findings

The pilot's inability to maintain directional control of the airplane as a result of the partial failure of the tail wheel assembly. A factor associated with the accident was the crop that the airplane contacted.

Aircraft Information

Registration
N23720
Make
AIR TRACTOR
Serial Number
400-0422
Engine Type
Turbo-shaft
Year Built
1981
Model / ICAO
AT-400A400
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
4

Registered Owner (Historical)

Name
LUX DAVID J
Address
7517 97TH AVE SE
Status
Deregistered
City
LAMOURE
State / Zip Code
ND 58458-9000
Country
United States

Analysis

The airplane ground looped following a failure of one of the tail wheel bolts. The pilot reported he was landing at a private grass airstrip when the accident occurred. He reported that upon landing the tail wheel broke and the airplane ground looped. Inspection of the airplane by a Federal Aviation Administration Inspector from the Minneapolis, Minnesota Flight Standards District Office revealed the airplane traveled into a bean field during the ground loop. The inspector reported the bottom bolt on the tail wheel assembly fractured which resulted in the loss of directional control.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# CHI06CA221