As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER REACHING CRUISING ALITITUDE ENROUTE. NOTICED AN UNUSUALLY STRONG ODOR OF FUEL IN FLIGHT. PERFORMED A VISUAL INSPECTION OF ALL LINES AND AREAS AROUND THE ACFT AND FOUND NOTHING OUT OF THE ORDINARY. TOOK OFF AGAIN AND THE ODOR WAS GONE AND PROCEDED ON MISSION. FLEW THE REST OF THE DAY WITHOUT ANY OTHER FURTHER OCCURANCE.