As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED A FUEL SMELL IN THE CABIN WITH THE APU RUNNING. EWR MX INSPECTED THE AIRCRAFT AND PLACED THE APU ON MEL 28-45-02, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. THE AIRCRAFT LANDED AT IAH ON FLIGHT 2388, WHERE MAINTENANCE REMOVED AND REPLACED THE APU FUEL PRESSURE SWITCH O-RING, REMOVED THE MEL, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.