As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON LEVEL OFF AT CRUISE FLIGHT, FUEL WAS TRANSFERRED FROM RIGHT TANK TO CENTER TANK AT RATE OF 50 LBS PER MINUTE. TRANSFER STOPPED WITH APPLICATION OF CENTER TANK PUMPS. FLIGHT RETURNED TO MEM AND LANDED WITHOUT INCIDENT. DISCREPANCY COULD NOT BE DUPLICATED ON GROUND. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.