# NTSB Accident DCA17CA147
> **AIRBUS A321 231** · 2017-07-01 · Chicago, IL, USA · NONE
## Event
- **NTSB number:** DCA17CA147
- **Event ID:** 20170703X71412
- **Type:** Accident
- **Date:** 2017-07-01
- **Location:** Chicago, IL, USA
- **Coordinates:** 41.977222, -87.89833
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 189
- **Total aboard:** 189
## Aircraft
- **Make:** AIRBUS
- **Model:** A321 231
- **Registration:** N991AU
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** MINR
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

the A321 flight crew's incorrect evaluation of the clearance between the aircraft, leading to the inadvertent collision with the horizontal stabilizer of the CRJ200.  Contributing to the accident was traffic congestion that resulted in the CRJ200 having to stop prior to fully clearing the perpendicular taxiway.

---
*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA17CA147) · AI Analytics · CC0 1.0*