Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
General Maintenance Action
Aircraft
During preflight we noticed a streak in an unusual spot on the underside of the wing.  Upon further inspection we noted that the streak was in fact fuel.  The location of the fuel leak was concerning to us as it was coming from a riveted area normally painted over and seamless.  I am submitting this [report] in case this is something that is of a systemic nature.
On preflight a fuel leak was noted on the bottom of the right hand wing.  Fuel leak was accompanied by what appears to be corrosion.  Maintenance control was notified of discrepancy.  Airplane was written up.  Maintenance control called it a fuel stain.
CE750 Flight Crew reports discovering a fuel leak on the bottom of the right wing during preflight.