As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: STRONG FUEL ODOR IN CABIN DURING PUSHBACK WHEN RUNNING PACKS ON APU BLEED VALVE. DURING INSPECTION OF APU COMPARTMENT, FOUND EVIDENCE OF OIL LEAK FROM THE AFT BEARING RETURN TUBE. REMOVED AND REPLACED AFT BEARING RETURN TUBE. PER HONEYWELL CMM 49-26-93.