# NTSB Accident WPR21LA155
> **AEROSTAR INTERNATIONAL INC RX 8** · 2020-11-29 · St. George, UT, USA · SERS
## Event
- **NTSB number:** WPR21LA155
- **Event ID:** 20210414102910
- **Type:** Accident
- **Date:** 2020-11-29
- **Location:** St. George, UT, USA
- **Coordinates:** 37.072888, -113.52047
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 2
## Aircraft
- **Make:** AEROSTAR INTERNATIONAL INC
- **Model:** RX 8
- **Registration:** N9051Y
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The pilot’s failure to maintain control of the balloon and a member of the ground crews entanglement with a tether rope, which resulted in a serious injury when they fell to the ground after the balloon unexpectedly ascended.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=WPR21LA155) · AI Analytics · CC0 1.0*