As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EWR - FLIGHT 2331 THE CREW REPORTED A STRONG FUEL SMELL IN THE COCKPIT AFTER STARTING THE APU. MAINTENANCE INSPECTED THE AIRCRAFT, OPERATIONALLY CHECKED THE APU AND AIR DISTRIBUTION SYSTEMS WITH NO DEFECTS BEING NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.