# NTSB Accident CEN25LA105
> **ROBINSON HELICOPTER COMPANY R44 II** · 2025-02-27 · Edgemont, SD, USA · SERS
## Event
- **NTSB number:** CEN25LA105
- **Event ID:** 20250228199776
- **Type:** Accident
- **Date:** 2025-02-27
- **Location:** Edgemont, SD, USA
- **Coordinates:** 43.3512, -103.74767
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** ROBINSON HELICOPTER COMPANY
- **Model:** R44 II
- **Registration:** N6555C
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to properly identify the proper anchor point for the supplemental harness and the crew’s incorrect use of the restraint system structure as an anchor point, which resulted in the separation of the structure.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN25LA105) · AI Analytics · CC0 1.0*