As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - FLIGHT 2436 - AFTER FUELING, THE CENTER TANK QUANTITY INCREASED FROM 10 LBS TO 25 LBS IN APPROXIMATELY 6 MINUTES DURING REQUIRED FUNCTIONAL TEST (REF 2ND NOTE ON CRJ FSM PAGE 3-75). MAINTENANCE INSPECTED THE AIRCRAFT AND REPLACED THE LEFT CENTER TANK TRANSFER EJECTOR. OPERATIONAL AND LEAK CHECKS WERE GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE.