# NTSB Incident OPS11IA552
> **EMBRAER EMB-145LR** · 2011-05-16 · CHICAGO, IL, USA · NONE
## Event
- **NTSB number:** OPS11IA552
- **Event ID:** 20110518X94643
- **Type:** Incident
- **Date:** 2011-05-16
- **Location:** CHICAGO, IL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 63
- **Total aboard:** 63
## Aircraft
- **Make:** EMBRAER
- **Model:** EMB-145LR
- **Registration:** N15574
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

The air traffic controller’s failure to adhere to runway separation requirements and his issuance of an improper takeoff clearance. Contributing to the incident was the controller's failure to recall that there was an arrival inbound to a crossing runway.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=OPS11IA552) · AI Analytics · CC0 1.0*