ASN Wikibase Occurrence # 383539
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| Date: | Friday 20 August 1982 |
| Time: | 09:00 LT |
| Type: |  Bell 47G-4A |
| Owner/operator: | Bonanza Valley Aviation |
| Registration: | N4090G |
| MSN: | 7640 |
| Year of manufacture: | 1968 |
| Total airframe hrs: | 4300 hours |
| Engine model: | Lycoming VO-540-B1B3 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Brooten, MN -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Unknown |
| Departure airport: | Near Brooten, MN |
| Near Brooten, MN | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT HAD BEEN ENGAGED IN A SPRAYING OPERATION FOR 2.5 HRS WHEN HE RETURNED AND LANDED ON A FLAT BED TYPE TRAILER TO SERVICE THE HELICOPTER. AFTER THE HOPPER WAS SERVICED WITH 60 GAL OF HERBICIDE, THE PILOT BEGAN HIS TAKE OFF. HE STATED THAT JUST AFTER LIFT-OFF, THE HELICOPTER LOST POWER AND YAWED TO THE LEFT. HE STATED THAT HE ATTEMPTED TO CUSHION THE LANDING WITH THE COLLECTIVE, BUT THE GEAR COLLAPSED AND THE MAIN ROTOR HIT A FENCE. AN EXAMINATION REVEALED NO DISCREPANCIES OF THE TRANSMISSION OR ENGINE, EXCEPT THE SPARK PLUGS WERE SEVERELY WORN. AN ENGINE RUN-UP WAS MADE AND IT OPERATED SATISFACTORILY.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB CHI82DA347
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 03-Apr-2024 01:44 | ASN Update Bot | Added |
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