# NTSB Incident OPS11IA819
> **EMBRAER EMB-135KL** · 2011-08-08 · Chicago, IL, USA · NONE
## Event
- **NTSB number:** OPS11IA819
- **Event ID:** 20110809X50704
- **Type:** Incident
- **Date:** 2011-08-08
- **Location:** Chicago, IL, USA
- **Coordinates:** 41.889591, -87.62088
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 84
- **Total aboard:** 84
## Aircraft
- **Make:** EMBRAER
- **Model:** EMB-135KL
- **Registration:** N377SK
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The improper air traffic control takeoff clearance issued by the local controller because of his lack of monitoring and lack of awareness of the conflicting arrival airplane.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=OPS11IA819) · AI Analytics · CC0 1.0*