# NTSB Accident ATL99LA076
> **Schempp-Hirth MINI-NIMBUS** · 1999-04-28 · GROVELAND, FL, USA · MINR
## Event
- **NTSB number:** ATL99LA076
- **Event ID:** 20001205X00425
- **Type:** Accident
- **Date:** 1999-04-28
- **Location:** GROVELAND, FL, USA
- **Coordinates:** 28.5599, -81.849441
## Injuries
- **Highest injury:** MINR
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 1
- **Uninjured:** 0
- **Total aboard:** 1
## Aircraft
- **Make:** Schempp-Hirth
- **Model:** MINI-NIMBUS
- **Registration:** N100GG
- **FAR Part:** 091
- **Engines:** —
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot's inability to locate a thermal and the in-flight encounter with a down draft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ATL99LA076) · AI Analytics · CC0 1.0*