# NTSB Accident CHI98GA025
> **Aerospatiale AS350B** · 1997-10-30 · FRANKFORT, IL, USA · FATL
## Event
- **NTSB number:** CHI98GA025
- **Event ID:** 20001208X08960
- **Type:** Accident
- **Date:** 1997-10-30
- **Location:** FRANKFORT, IL, USA
- **Coordinates:** 41.489978, -87.829978
## Injuries
- **Highest injury:** FATL
- **Fatal:** 2
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 0
- **Total aboard:** 2
## Aircraft
- **Make:** Aerospatiale
- **Model:** AS350B
- **Registration:** N911RR
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** DEST
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

the pilot in command misjudged the clearance with the terrain during a dark night maneuvering approach to a runway.  A related factor was the dark night conditions.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI98GA025) · AI Analytics · CC0 1.0*