# NTSB Accident LAX07CA177
> **MD Helicopters 500-E** · 2007-05-27 · Yerington, NV, USA · MINR
## Event
- **NTSB number:** LAX07CA177
- **Event ID:** 20070807X01130
- **Type:** Accident
- **Date:** 2007-05-27
- **Location:** Yerington, NV, USA
- **Coordinates:** 38.599998, -119
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 2
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** MD Helicopters
- **Model:** 500-E
- **Registration:** N526BH
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The failure of the student and instructor to maintain an adequate main rotor rpm, and the instructor’s inadequate in-flight supervision while conducting a low-level simulated emergency procedure, which resulted in a hard landing.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX07CA177) · AI Analytics · CC0 1.0*