# NTSB Incident OPS06IA008
> **Boeing 737-322** · 2006-07-24 · Chicago, IL, USA · NONE
## Event
- **NTSB number:** OPS06IA008
- **Event ID:** 20061115X01674
- **Type:** Incident
- **Date:** 2006-07-24
- **Location:** Chicago, IL, USA
- **Coordinates:** 41.97861, -87.903335
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 131
- **Total aboard:** 131
## Aircraft
- **Make:** Boeing
- **Model:** 737-322
- **Registration:** N315UA
- **FAR Part:** 121
- **Engines:** —
- **Damage:** —
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

The failure of the ORD tower south local controller to monitor Atlas Air flight 6972, B747, on arrival to runway 14R and subsequently clearing United Airlines flight 1015, B737, for takeoff on intersecting runway 27L causing a loss of separation between the two aircraft.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=OPS06IA008) · AI Analytics · CC0 1.0*