Summary
On July 31, 2000, a Air Tractor AT-301 (N4330S) was involved in an accident near Brockway, MT. The accident resulted in 1 serious injury. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this accident to be: The pilot's failure to maintain clearance from power lines.
On July 31, 2000, about 0813 mountain daylight time, an Air Tractor AT-301, N4330S, registered to the pilot and operated by Harris Spray, Incorporated, as a 14CFR137 aerial application flight, was substantially damaged after colliding with a power pole guy wire and terrain near Brockway, Montana. The commercial pilot sustained serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The flight originated from Brockway, Montana approximately 15 minutes prior to the accident.
During a routine aerial application flight, the aircraft collided with a power pole guy wire. The pilot stated that his spray path was parallel to a series of power transmission lines and that he did not see the guy wire prior to the collision.
This accident is documented in NTSB report SEA00LA148. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4330S.
Accident Details
Probable Cause and Findings
The pilot's failure to maintain clearance from power lines.
Aircraft Information
Registered Owner (Historical)
Analysis
On July 31, 2000, about 0813 mountain daylight time, an Air Tractor AT-301, N4330S, registered to the pilot and operated by Harris Spray, Incorporated, as a 14CFR137 aerial application flight, was substantially damaged after colliding with a power pole guy wire and terrain near Brockway, Montana. The commercial pilot sustained serious injuries. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The flight originated from Brockway, Montana approximately 15 minutes prior to the accident.
During a routine aerial application flight, the aircraft collided with a power pole guy wire. The pilot stated that his spray path was parallel to a series of power transmission lines and that he did not see the guy wire prior to the collision. The guy wire severed the outboard section of the aircraft's right wing and aileron. The aircraft subsequently rolled to the right and collided with terrain. The aircraft came to rest, inverted, approximately 1,100 feet from the initial impact point.
The pilot reported that there were no mechanical malfunctions or failures that contributed to the accident.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA00LA148