As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLIGHT#3024 THE CREW REPORTED THE APU STARTED ON THE GROUND WITH STRONG FUEL SMELL FILLING THE CABIN.MAINTENANCE PLACED THE APU ON MEL 49-00-00.MAINTENANCE REPLACED THE START FUEL CHECK VALVE.OPERATIONAL CHECKS WERE GOOD.THE AIRCRAFT WAS RELEASED FOR SERVICE.