# NTSB Accident ATL89DLT04
> **PITTS S-1** · 1989-07-09 · BUTLER, TN, USA · MINR
## Event
- **NTSB number:** ATL89DLT04
- **Event ID:** 20001213X28713
- **Type:** Accident
- **Date:** 1989-07-09
- **Location:** BUTLER, TN, USA
- **Coordinates:** 36.3096, -81.999694
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** PITTS
- **Model:** S-1
- **Registration:** N8336
- **FAR Part:** 091
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

THE FAILURE OF THE PILOT TO MAINTAIN CLEARANCE FROM THE SURFACE DURING AN IMPROMPTU ACROBATIC MANEUVER.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ATL89DLT04) · AI Analytics · CC0 1.0*