# NTSB Accident WPR10CA193
> **ROBINSON R44** · 2009-10-29 · San Juan Batista, CA, USA · NONE
## Event
- **NTSB number:** WPR10CA193
- **Event ID:** 20100407X12526
- **Type:** Accident
- **Date:** 2009-10-29
- **Location:** San Juan Batista, CA, USA
- **Coordinates:** 36.625278, -121.672225
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON
- **Model:** R44
- **Registration:** N144RF
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain adequate clearance from wires while maneuvering and his subsequent improper use of the collective control, which resulted in the main rotor contacting the tail boom.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR10CA193) · AI Analytics · CC0 1.0*