As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHORTLY AFTER DEPARTURE, PAX OBSERVED FUEL LEAKING FROM RT WING. THE LEAK APPEARED TO BE FROM THE RT AILERON & THE OTBD PORTION OF THE WING. EMER WAS DECLARED DUE TO THE FACT THAT THE CREW COULD NOT DETERMINE THE CAUSE OF THE LEAK. CREW LANDED UNEVENTFULLY AT DEPARTURE AIRPORT. LEAK WAS TRACED BACK TO A FULL RT WING SUMP. RT & LT WING SUMPS DRAINED. NO FURTHER LEAKS NOTED.