# NTSB Accident ERA23LA315
> **HEAD BALLOONS INC AX8-88** · 2023-07-24 · Guilford, CT, USA · SERS
## Event
- **NTSB number:** ERA23LA315
- **Event ID:** 20230728192734
- **Type:** Accident
- **Date:** 2023-07-24
- **Location:** Guilford, CT, USA
- **Coordinates:** 41.27954, -72.67627
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 4
## Aircraft
- **Make:** HEAD BALLOONS INC
- **Model:** AX8-88
- **Registration:** N4522E
- **FAR Part:** 091
- **Engines:** 0
- **Damage:** —
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

The pilot’s inadequate supervision of the boarding process and the ground crewmember’s failure to immediately let go of the balloon after it began an inadvertent climb.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=ERA23LA315) · AI Analytics · CC0 1.0*