ASN Wikibase Occurrence # 313636
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| Date: | Monday 15 May 2023 |
| Time: | 11:00 |
| Type: |  Robinson R22 Beta II |
| Owner/operator: | Utah Helicopter |
| Registration: | N227WM |
| MSN: | 4172 |
| Year of manufacture: | 2007 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Spanish Fork Municipal Airport/Woodhouse Field (SPK/KSPK), UT -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Spanish Fork Municipal Airport/Woodhouse Field, UT (KSPK) |
| Spanish Fork Municipal Airport/Woodhouse Field, UT (KSPK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor and student pilot performed a straight-in autorotation with a power recovery maneuver to simulate landing the helicopter with a complete power loss. As the instructor demonstrated the autorotation, during the glide, the instructor realized that he was going to overshoot the landing spot, and forced the helicopter out of trim, which enabled the helicopter to increase its decent rate. As the helicopter crossed 100 ft above ground level, the instructor trimmed the helicopter and noted that the helicopter’s airspeed and rotor RPMs were about 50 knots and 95%, respectively. The instructor initiated a flare and the helicopter started to sink. He then rolled the engine throttle UP and raised the collective, but the helicopter landed hard. Subsequently, the main rotor struck the tailboom, which sustained substantial damage.
The flight instructor reported no mechanical failures or anomalies that would have precluded normal operation.
Probable Cause: The instructor pilot’s improper landing flare during a straight-in autorotation, which resulted in a hard landing.
Accident investigation:
 |
|
Sources:
NTSB
https://data.ntsb.gov/Docket?ProjectID=174533
https://flightaware.com/live/flight/N227WM
https://live.staticflickr.com/3619/3678106343_5d566195f9_b.jpg (photo)
Location
Images:
Photo: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 23-May-2023 15:46 | Captain Adam | Added |
| 06-Apr-2024 15:25 | Captain Adam | Updated [Operator, Source, Narrative, Photo] |
Corrections or additions? ... Edit this accident description
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