Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
Flight Crew Became Reoriented
Human Factors; Procedure
Captain inadvertently hit the crossflow switch with shoe and pant cuff while exiting the left seat of the aircraft. After exiting the seat; Captain continued into the FBO to wait [for] passengers. After passengers arrive; both crew and passengers walked out to the airplane where we found fuel exiting the vent in the right wing. Approximately 200 to 250 pounds of fuel spill over to the ground. FBO personnel cleaned up the fuel without incident and no fuel was leaked into the sewer system. Flight was delayed one hour and one minute until the fuel was cleaned up. The suggestion is to not leave the aircraft alone while power is applied.
Citation Captain reported inadvertently activating the crossflow switch with his shoe that allowed fuel to be released from the wing tank spilling on the ground.