As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUEL SEEPAGE FOUND AT LEFT REAR WING ATTACHMENT BOLT AT RIB NR 4 LOCATED AT LEFT AFT INSTALLATION FITTING. FOUND LEFT WING ATTACHMENT AFT FITTING BOLT LOOSE. NEW BOLT WAS INSTALLED AND AREA INSIDE THE FUEL TANK WAS SEALED AS PER STRUCTURAL REPAIR MANUAL CHAPTER 517120.