# NTSB Accident DCA11CA014
> **BOEING 737-7H4** · 2010-12-18 · Philadelphia, PA, USA · NONE
## Event
- **NTSB number:** DCA11CA014
- **Event ID:** 20101220X14621
- **Type:** Accident
- **Date:** 2010-12-18
- **Location:** Philadelphia, PA, USA
- **Coordinates:** 39.872222, -75.240837
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 222
- **Total aboard:** 222
## Aircraft
- **Make:** BOEING
- **Model:** 737-7H4
- **Registration:** N913WN
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** SUBS
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

the failure of the ground operations personnel to maintain awareness of the relative position of the two airplanes.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=DCA11CA014) · AI Analytics · CC0 1.0*