# NTSB Accident WPR22LA333
> **BELL 407** · 2022-09-04 · Mount Baldy, CA, USA · SERS
## Event
- **NTSB number:** WPR22LA333
- **Event ID:** 20220906105859
- **Type:** Accident
- **Date:** 2022-09-04
- **Location:** Mount Baldy, CA, USA
- **Coordinates:** 34.243, -117.654
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** BELL
- **Model:** 407
- **Registration:** N687AM
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to ensure the throttle was properly positioned before commencing an approach to land, which resulted in a low rotor rpm condition and impact with terrain. Contributing to the accident was a worn throttle detent.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR22LA333) · AI Analytics · CC0 1.0*