As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS PUSHED BACK FROM THE GATE AND WHEN THE CREW STARTED THE ENGINES THEY HAD THE APU HAD A AUTOSHUTDOWN, CAUSING A FUEL ODOR IN THE COCKPIT AND CABIN. PUSHED THE ACFT BACK TO THE GATE AND MAINTENANCE FOUND THE APU TO BE FAULTY.