# NTSB Accident CHI91DEP13
> **MERRITT ROBERTSON B1-RD** · 1991-09-07 · MENASHA, WI, USA · SERS
## Event
- **NTSB number:** CHI91DEP13
- **Event ID:** 20001212X18047
- **Type:** Accident
- **Date:** 1991-09-07
- **Location:** MENASHA, WI, USA
- **Coordinates:** 44.210113, -88.430198
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** MERRITT
- **Model:** ROBERTSON B1-RD
- **Registration:** UNREG
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

INADEQUATE VISUAL LOOK OUT WHIH RESULTED IN A WIRE STRIKE AND UNCONTROLLED DESCENT.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91DEP13) · AI Analytics · CC0 1.0*