# NTSB Accident WPR17LA043
> **ROBINSON HELICOPTER COMPANY R44 II** · 2016-12-29 · Mt. Baldy, CA, USA · SERS
## Event
- **NTSB number:** WPR17LA043
- **Event ID:** 20161230X15938
- **Type:** Accident
- **Date:** 2016-12-29
- **Location:** Mt. Baldy, CA, USA
- **Coordinates:** 34.287776, -117.65139
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 3
- **Uninjured:** 0
- **Total aboard:** 4
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R44 II
- **Registration:** N324RS
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain main rotor speed during a low orbiting approach over a confined mountainous area. Contributing to the accident was the pilot's decision to attempt to land in an area that did not allow for a safe exit path under conditions near the limit of the helicopter’s performance capability.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR17LA043) · AI Analytics · CC0 1.0*