NTSB Identification: GAA15CA251
14 CFR Part 137: Agricultural
Friday, September 04, 2015
Fort Pierre, SD
Probable Cause Approval Date:
AIR TRACTOR INC AT 402A, registration:
Injuries: 1 Minor.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The pilot reported that after conducting a pass over a field during an aerial application flight, he passed clear of a tower but did not see the tower support guy-wires and collided with them. He stated, "After the guy-wire impact there was an immediate sound of the engine starting to lose power and/or shut down." The pilot then performed an emergency landing on a gravel road without further incident. A post flight inspection revealed substantial damage to the fuselage and left wing.
The pilot reported there were no pre-impact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
The National Transportation Safety Board determines the probable cause(s) of this
The pilot's failure to maintain obstacle clearance, which resulted in the airplane striking guy-wires during aerial application operations.