ASN Wikibase Occurrence # 206486
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| Date: | Thursday 12 October 2017 |
| Time: | 23:35 |
| Type: |  Eurocopter EC 145 |
| Owner/operator: | OSF Aviation |
| Registration: | N140SF |
| MSN: | 9389 |
| Year of manufacture: | 2010 |
| Total airframe hrs: | 3156 hours |
| Engine model: | TURBOMECA/ SAFRAN ARRIEL 1E2 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Canton, IL -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Training |
| Departure airport: | Peoria-Greater Peoria Airport, IL (PIA/KPIA) |
| Canton Airport, SD (CTK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter flight instructor reported that he was training a new company pilot at night, and they were using night vision goggles. He added that, while in a hover, he attempted to demonstrate the use of the controllable search light to the pilot in the right seat.
The flight instructor added that, “to adjust the light, I took the [left] cyclic in my left hand which would normally be holding the left collective and attempted to reach the control switch for the light and grabbed the throttles of the right collective with my right hand. My right hand would normally be on the left cyclic.” He further added that he then inadvertently pushed down on the collective, and the helicopter began to settle on the runway. He reported that in response “[his] reflex was to pull up with [his] left hand (which would normally be on the collective),” and when he did so the helicopter moved rearward. Subsequently, he “pushed the cyclic forward to correct” the rearward movement, but in doing so, the helicopter touched down hard, and the main rotor impacted the upper wire strike protection unit.
The main rotor sustained substantial damage.
The flight instructor reported that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation.
Probable Cause: The flight instructor's incorrect cyclic control during a hover, which resulted in a hard landing.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Feb-2018 19:39 | ASN Update Bot | Added |
| 05-Dec-2023 16:51 | harro | Updated [Other fatalities, Departure airport, Destination airport, Narrative] |
| 16-Mar-2024 09:01 | ASN | Updated [Accident report] |
Corrections or additions? ... Edit this accident description
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