As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG ODOR OF FUEL VAPORS IN CABIN WHEN APU BLEEDS TURNED ON. ODOR STARTED TO DISSIPATE WHEN BLEEDS SWITCHED OFF BUT TAXI WAS TOO SHORT TO FULLY DISSIPATE WITH PACKS RUNNING OFF ENG BLEEDS. APU INTERNAL LEAK. MX DEFERRED THE APU 4/3/2004. MX RAN APU, NO DEFECTS NOTED. NO PARTS USED.