No fatalities

BOEING 737-7BD accident at San Diego, CA, 11 Aug 2023

San Diego, CA, United States

On August 11, 2023, a BOEING 737-7BD operated by SOUTHWEST AIRLINES CO was involved in an aviation accident near San Diego, CA. No fatalities were reported. Investigators recorded the probable cause as: The local control controller’s poor judgment in duty prioritization which distracted them from monitoring arriving and departing traffic and resulted in a runway incursion and loss of same runway separation. This summary draws on records from NTSB; 8 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards
BOEING 737-7BD
Photo: San Diego Air & Space Museum Archives / Public domain, via Wikimedia Commons

Probable cause

The local control controller’s poor judgment in duty prioritization which distracted them from monitoring arriving and departing traffic and resulted in a runway incursion and loss of same runway separation. Contributing was the operations supervisor’s decision to troubleshoot a faulty flight strip printer instead of maintaining direct supervision of the operation.

— NTSB Determination

Contributing factors

ATC personnelATC

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Frequently asked questions

What happened in the 11 Aug 2023 BOEING 737-7BD accident near San Diego, CA?

The local control controller’s poor judgment in duty prioritization which distracted them from monitoring arriving and departing traffic and resulted in a runway incursion and loss of same runway separation. Contributing was the operations supervisor’s decision to troubleshoot a faulty flight strip printer instead of…

Were there any fatalities in the 11 Aug 2023 BOEING 737-7BD accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 11 Aug 2023 involved a BOEING 737-7BD, operated by SOUTHWEST AIRLINES CO, at San Diego, CA.

What was the probable cause of the accident?

The local control controller’s poor judgment in duty prioritization which distracted them from monitoring arriving and departing traffic and resulted in a runway incursion and loss of same runway separation. Contributing was the operations supervisor’s decision to troubleshoot a faulty flight strip printer instead of…