# NTSB Accident DCA21LA208
> **BOEING 737-990ER** · 2021-08-24 · SeaTac, WA, USA · SERS
## Event
- **NTSB number:** DCA21LA208
- **Event ID:** 20210825103753
- **Type:** Accident
- **Date:** 2021-08-24
- **Location:** SeaTac, WA, USA
- **Coordinates:** 47.443719, -122.31173
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 3
- **Uninjured:** 130
- **Total aboard:** 134
## Aircraft
- **Make:** BOEING
- **Model:** 737-990ER
- **Registration:** N479AS
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DUSK
- **Weather:** VMC
## Probable cause

The passenger’s use of the evacuation slide resulted in the serious injury.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA21LA208) · AI Analytics · CC0 1.0*