# NTSB Accident CEN21LA350
> **ROBINSON HELICOPTER R44** · 2021-08-04 · Waukon, IA, USA · MINR
## Event
- **NTSB number:** CEN21LA350
- **Event ID:** 20210804103624
- **Type:** Accident
- **Date:** 2021-08-04
- **Location:** Waukon, IA, USA
- **Coordinates:** 43.261185, -91.375664
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** ROBINSON HELICOPTER
- **Model:** R44
- **Registration:** N775AK
- **FAR Part:** 137
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to maintain adequate clearance from a powerline during an agricultural application pass.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CEN21LA350) · AI Analytics · CC0 1.0*