# NTSB Accident DCA23LA421
> **BOEING 777-222** · 2023-08-18 · Over the, AO, USA · SERS
## Event
- **NTSB number:** DCA23LA421
- **Event ID:** 20230823192927
- **Type:** Accident
- **Date:** 2023-08-18
- **Location:** Over the, AO, USA
- **Coordinates:** 40, -60
## Injuries
- **Highest injury:** SERS
- **Fatal:** 0
- **Serious:** 1
- **Minor:** 8
- **Uninjured:** 247
- **Total aboard:** 256
## Aircraft
- **Make:** BOEING
- **Model:** 777-222
- **Registration:** N209UA
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

An inadvertent encounter with clear air turbulence during cruise flight.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA23LA421) · AI Analytics · CC0 1.0*