# NTSB Incident CHI95IA095
> **BOEING 747-136** · 1995-02-26 · CHICAGO, IL, USA · NONE
## Event
- **NTSB number:** CHI95IA095
- **Event ID:** 20001207X02932
- **Type:** Incident
- **Date:** 1995-02-26
- **Location:** CHICAGO, IL, USA
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 357
- **Total aboard:** 357
## Aircraft
- **Make:** BOEING
- **Model:** 747-136
- **Registration:** GAWNM
- **FAR Part:** 129
- **Engines:** 4
- **Damage:** —
## Conditions
- **Light:** NDRK
- **Weather:** VMC
## Probable cause

the North Local Controller's failure to issue a clearance which would ensure separation between the two airplanes and the North Local Control Monitor's failure to adequately back up the controller.  Factors were the complexity of the airport operations and task overload of the North Local Controller.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI95IA095) · AI Analytics · CC0 1.0*