# NTSB Accident ANC20CA068
> **Robinson R44** · 2020-07-10 · Ketchikan, AK, USA · NONE
## Event
- **NTSB number:** ANC20CA068
- **Event ID:** 20200715X05525
- **Type:** Accident
- **Date:** 2020-07-10
- **Location:** Ketchikan, AK, USA
- **Coordinates:** 55.766944, -131.41694
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Robinson
- **Model:** R44
- **Registration:** N878CB
- **FAR Part:** 135
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The crew leader's decision to throw a chainsaw bar into the moving arc of the main rotor blade.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ANC20CA068) · AI Analytics · CC0 1.0*