As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - WHEN STARTING THE APU THE CREW NOTED THAT A FUEL SMELL WAS PRESENT IN THE COCKPIT. MAINTENANCE REMOVED AND REPLACED THE APU PERFORMED A OPERATIONAL CHECK AND A LEAK CHECK, NO DEFECTS NOTED. THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.