ASN Wikibase Occurrence # 354442
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| Date: | Wednesday 20 May 1998 |
| Time: | 10:15 LT |
| Type: |  Air Tractor AT-401 |
| Owner/operator: | Private |
| Registration: | N1009T |
| MSN: | 401-0707 |
| Year of manufacture: | 1989 |
| Total airframe hrs: | 4055 hours |
| Engine model: | P&W 1340-AN2 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Idaho Falls, ID -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Osgood, ID |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
According to the pilot, who was maneuvering near the power line while applying chemicals to a field, he had just rolled wings-level and descended for another pass when his left wing contacted the top wire of the power line. He said that he saw the line and thought he had clearance, but the aircraft's wing caught the wire near its tip. He reported that after colliding with the power line, the aircraft struck the ground in a 'cart-wheeling' motion. He further stated that he was accustomed to flying the AT-300, but that he had recently purchased the AT-401, and that this was his first application flight using the new aircraft. It was his opinion that the different size and sight-picture of the 401 had caused him to think he had more clearance from the wire than he actually had.
Probable Cause: The pilot's failure to maintain clearance from a power transmission line during an aerial application flight. Factors include a power line located just beyond the boundary of the field being sprayed, and the pilot's incorrect judgement of the distance between the wire and his aircraft.
Accident investigation:
 |
|
Sources:
NTSB SEA98LA080
History of this aircraft
Other occurrences involving this aircraft
| 15 July 1993 | N1009T | Private | 0 | Dermott, AR | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Mar-2024 14:26 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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