As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG INTERMITTENT FUEL SMELL IN THE FLIGHT DECK IN FLIGHT AND ON GROUND. APU RAN ENTIRE FLIGHT. (FLT 5421) CLOSED SECURED LOOSE PANEL SCREWS ON RIGHT WING, NR 5 FUEL PANEL AS REQUIRED. NO LEAKS NOTED. RAN APU AND ENGINES, OPERATED BLEED AIR WITH NO FUEL SMELL NOTED. OPS CHECKS, GOOD.