First post here i am not an engineer so please bear with me...
Following incident occured at our airport:
Boeing 737-800 is beeing refuelled on stand via fuel dispenser.
Aircraft APU is off as power is supplied by fixed ground generator.
During refuelling there is a power shortage as the gpu goes inop.
Nearly the same time fuel starts to flow from the underwing fuel vent creatng a major spill on the apron.
According to the airline (engineer of flight deck crew...not sure as i was not present) ,the whole problem was caused by the gpu power shortage.
My question here is if the above is really true as its the first time i have heard about this kind of incident.Can a loss of electrical power during refuelling create the above effect? How does a 737NG "act" during this kind of situation?
Any reference material from Boeing would be deeply appreciated!
Thanks in advance