# NTSB Accident GAA17CA520
> **CESSNA 680** · 2017-09-03 · Wilmington, DE, USA · SERS
## Event
- **NTSB number:** GAA17CA520
- **Event ID:** 20170906X62240
- **Type:** Accident
- **Date:** 2017-09-03
- **Location:** Wilmington, DE, USA
- **Coordinates:** 39.678611, -75.606666
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 0
- **Uninjured:** 3
- **Total aboard:** 4
## Aircraft
- **Make:** CESSNA
- **Model:** 680
- **Registration:** N378QS
- **FAR Part:** 091K
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The passenger’s inadvertent slip on the airplane's air stairs during deplaning, which resulted in a broken ankle.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=GAA17CA520) · AI Analytics · CC0 1.0*