As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3779 COCKPIT & GALLEY HAVE STRONG FUEL SMELL. INSPECTED APU & FOUND LEAKING LINE ON APU FCU. R & R O RING ON LEAKING LINE AS REQUIRED. OPERATIONS CHECKED GOOD, LEAK CHECKED GOOD. CLEANED APU ENCLOSURE & FUEL SMELL NO LONGER PRESENT INSIDE OF ACFT.