As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PILOT SMELLED FUEL IN THE COCKPIT DURING CLIMB-OUT. RETURNED TO ANC WITHOUT INCIDENT. AN EMERGENCY WAS NOT DECLARED. FOUND FUEL LINE B-NUT LOOSE AND NOT SAFETY WIRED AT BRACKET ON ENGINE SIDE OF FUEL FLOW TRANSMITTER. TIGHTENED AND SAFETY WIRED B-NUT ON FUEL LINE. ON GROUND RUN, NO LEAKS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE. (M)