Narrative:

While I was trying capture aircraft X to supertug; the ground power cord got stuck on the front of the supertug and stretched the cord from the receptacle causing an arc flash damaging the ground power unit and possibly the aircraft.

Google
 

Original NASA ASRS Text

Title: While trying to connect a Super Tug to a B777 Aircraft the power cord got stuck on the front of the tug causing the power cord to stretch and get pulled away from the aircraft receptacle causing an Arch Flash damaging the ground power unit and possibly the aircraft.

Narrative: While I was trying capture Aircraft X to supertug; the ground power cord got stuck on the front of the supertug and stretched the cord from the receptacle causing an arc flash damaging the ground power unit and possibly the aircraft.

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.