As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GNDED. A STRONG FUEL SMELL REPORTED THROUGHOUT CABIN WHEN APU SUPPLYING AIR CONDITIONING. INSPECTED APU & FOUND FUEL FILTER COVER LOOSE & WET. R & R FILTER COVER BOLTS IAW AMM 49-30-02. OPERATIONAL & LEAK CHECKED NORMAL. ACCOMPLISHED CARD 21-96-01 WITH NO ODORS NOTED.