As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. DISTINCT JET FUEL ODOR IN COCKPIT & CABIN WHEN APU BLEED AIR IS SELECTED TO ON. ACCOMPLISHED TROUBLESHOOTING IAW WC 21-96-01. FOUND FUEL LEAK AT APU FUEL CONTROL DRAIN SHROUD. R & R APU FUEL CONTROL UNIT IAW AMM 49-30-01. OPERATIONAL & LEAK CHECKED GOOD.