# NTSB Accident CHI99LA151
> **Engleman PITTS S1** · 1999-05-15 · MATTOON, IL, USA · NONE
## Event
- **NTSB number:** CHI99LA151
- **Event ID:** 20001212X18721
- **Type:** Accident
- **Date:** 1999-05-15
- **Location:** MATTOON, IL, USA
- **Coordinates:** 39.469539, -88.359191
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** Engleman
- **Model:** PITTS S1
- **Registration:** N64DE
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's failure to maintain directional control and inadvertent ground loop/swerve.  A related factor was the crosswind.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI99LA151) · AI Analytics · CC0 1.0*