Narrative:

I pulled into the gate with the #1 engine running as per our new procedure. I was waiting for ground power to be connected and after 2 or 3 signals from the [ground crewman] I concluded that the gpu was inop. I immediately started the APU and once it was online I shut down the #1 engine. I witnessed some screaming and commotion outside but didn't know what happened. I was informed by the [outbound captain] that the left wing walker approached the aircraft while the engine was running and was almost sucked in and killed. The thought of something like that happening on my flight is very scary.

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Original NASA ASRS Text

Title: When there was a delay in shutting down the left engine of the B-737 at the gate due to being unable to power the aircraft with the GPU; a wing walker walked in front of the engine and was nearly sucked into it.

Narrative: I pulled into the gate with the #1 engine running as per our new procedure. I was waiting for ground power to be connected and after 2 or 3 signals from the [ground crewman] I concluded that the GPU was inop. I immediately started the APU and once it was online I shut down the #1 engine. I witnessed some screaming and commotion outside but didn't know what happened. I was informed by the [outbound Captain] that the left wing walker approached the aircraft while the engine was running and was almost sucked in and killed. The thought of something like that happening on my flight is very scary.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.