# NTSB Accident CHI91DEV04
> **PITTS SPECIAL S-1** · 1991-08-31 · LINCOLN, IL, USA · MINR
## Event
- **NTSB number:** CHI91DEV04
- **Event ID:** 20001212X17798
- **Type:** Accident
- **Date:** 1991-08-31
- **Location:** LINCOLN, IL, USA
- **Coordinates:** 40.1496, -89.360359
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** PITTS SPECIAL
- **Model:** S-1
- **Registration:** N237V
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI91DEV04) · AI Analytics · CC0 1.0*