ASN Wikibase Occurrence # 210292
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Date: | Monday 24 July 2017 |
Time: | 16:00 |
Type: | Bell 47G-3B |
Owner/operator: | Scotts Helicopter Service Inc |
Registration: | N47AH |
MSN: | 2645 |
Year of manufacture: | 1961 |
Total airframe hrs: | 14259 hours |
Engine model: | Lycoming TV0-435 SER |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Toterville, IA -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Agricultural |
Departure airport: | Toterville, IA |
Destination airport: | Toterville, IA |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:According to the helicopter pilot, during an agricultural flight, he made a downwind turn to spray the intended field. During the low airspeed right turn, he increased the engine power, and the rotor rpm decreased. He reported that he leveled the helicopter to clear power lines, but the rotor rpm remained low. The helicopter descended, and the pilot landed the helicopter in a corn field.
The helicopter sustained substantial damage to the tailboom and horizontal stabilizer.
The nearest METAR located 15 nautical miles south-southeast from the accident site reported that, about the time of the accident, the wind was calm.
The pilot reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Probable Cause: The pilot’s failure to maintain rotor rpm while maneuvering at low altitude with low airspeed and a tailwind.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | GAA17CA436 |
Status: | Investigation completed |
Duration: | 9 months |
Download report: | Final report |
|
Sources:
NTSB
History of this aircraft
Other occurrences involving this aircraft Location
Revision history:
Date/time | Contributor | Updates |
01-May-2018 13:44 |
ASN Update Bot |
Added |
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