As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG FUEL SMELL OBSERVED DURING APU OPERATION INFLT & ON THE GND. SMELL DISSIPATES WHEN APU IS SHUTDOWN. INSPECTED APU & FOUND FUEL TO BE COMING FROM POWER SECTION. PERFORMED ENG RUNS & NO FUEL SMELL IN COCKPIT OR CABIN WITH APU OFF. R & R APU POWERPLANT IAW 49-10-00 & MTC 000-49-310-001AW. OPERATIONS CHECKED LEAK, CHECKED GOOD.