# NTSB Incident LAX04IA302
> **Boeing 737-7H4** · 2004-08-19 · Los Angeles, CA, USA · NONE
## Event
- **NTSB number:** LAX04IA302
- **Event ID:** 20040830X01323
- **Type:** Incident
- **Date:** 2004-08-19
- **Location:** Los Angeles, CA, USA
- **Coordinates:** 33.942501, -118.408058
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 142
- **Total aboard:** 142
## Aircraft
- **Make:** Boeing
- **Model:** 737-7H4
- **Registration:** N461WN
- **FAR Part:** 121
- **Engines:** 2
- **Damage:** —
## Conditions
- **Light:** DAYL
- **Weather:** VMC
## Probable cause

a loss of separation between Southwest flight 440 and Asiana flight 204 due to the LC2 relief controller's failure to appropriately monitor the operation and recognize a developing traffic conflict.  Contributing factors included the FAA's position relief briefing procedures, the formatting of the DBRITE radar displays in the LAX tower, controller fatigue, and the tower supervisor's staffing decisions on the day of the incident.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=LAX04IA302) · AI Analytics · CC0 1.0*