What was found
AFTER TAKEOFF, CREW REPORTED SEEING & SMELLING ELEC SMOKE FROM BEHIND THE FUEL QTY PANEL. THE CREW DEPLOYED OXYGEN MASKS & MADE AN UNEVENTFUL EMER LANDING AT THE AIRPORT OF ORIGIN. THE CREW REPORTED THE SMOKE & ODOR HAD DISSIPATED UPON LANDING. NO SYS FAULTS OR FAILURES WERE OBSERVED. IDENTIFIED & CORRECTED CONTACT BETWEEN A POWER CABLE TERMINALS & AIRFRAME STRUCTURE BEHIND THE HINGED FUEL QTY PANEL & RETURNED THE ACFT TO SERVICE.