# NTSB Accident WPR09GA397
> **EUROCOPTER AS 350 B2** · 2009-08-13 · Lancaster, CA, USA · SERS
## Event
- **NTSB number:** WPR09GA397
- **Event ID:** 20090814X30947
- **Type:** Accident
- **Date:** 2009-08-13
- **Location:** Lancaster, CA, USA
- **Coordinates:** 34.740833, -118.218612
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 3
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 3
## Aircraft
- **Make:** EUROCOPTER
- **Model:** AS 350 B2
- **Registration:** N217LA
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilots’ decision to conduct a practice autorotation at low altitude in high density altitude conditions and their failure to attain and maintain an appropriate descent rate. Contributing to the accident was the high density altitude and the pilots’ failure to comply with Los Angeles Police Department guidance.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR09GA397) · AI Analytics · CC0 1.0*