# NTSB Accident DEN04LA142
> **Robinson R22** · 2004-09-14 · Spanish Fork, UT, USA · MINR
## Event
- **NTSB number:** DEN04LA142
- **Event ID:** 20040921X01472
- **Type:** Accident
- **Date:** 2004-09-14
- **Location:** Spanish Fork, UT, USA
- **Coordinates:** 40.02074, -111.550361
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** Robinson
- **Model:** R22
- **Registration:** N777UH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the instructor's premature flare, resulting in a hard landing, and his failure to align the helicopter with the direction of travel, resulting in a rollover.Contributing factors were the low rotor RPM and inadequate airspeed. The reason for the loss of engine power was not determined.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DEN04LA142) · AI Analytics · CC0 1.0*