ASN Wikibase Occurrence # 365152
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| Date: | Tuesday 11 June 1991 |
| Time: | 14:30 LT |
| Type: | Bell 47G-3B1 Soloy |
| Owner/operator: | Tery Jon Aviation |
| Registration: | N73284 |
| MSN: | 2908 |
| Year of manufacture: | 1964 |
| Total airframe hrs: | 9016 hours |
| Engine model: | Allison 250-C20 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lasalle, MN -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT STATED THAT HE WAS PERFORMING AERIAL APPLICATION OPERATIONS OVER A WHEAT FIELD WHEN THE ACCIDENT OCCURRED. HE WAS FLYING HIS FIRST SPRAY SWATH ON THE FIELD WHEN THE SPRAY BOOM CONTACTED THE CROP. THE HELICOPTER IMPACTED THE GROUND AND CAME TO REST INVERTED. THE PILOT'S RECOMMENDATION WAS TO FLY HIS SPRAY SWATHS AT A HIGHER ALTITUDE.
Probable Cause: THE PILOT'S FAILURE TO MAINTAIN ADEQUATE CLEARANCE FROM THE TERRAIN. A RELATED FACTOR IS THE PILOT'S MISJUDGED ALTITUDE ABOVE THE CROP.
Accident investigation:
 |
|
Sources:
NTSB CHI91DER05
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 07:10 | ASN Update Bot | Added |
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