As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS UNWANTED FUEL TRANSFER FROM RT MAIN TANK TO BOTH CENTER AND LEFT MAIN DURING T.O. AND INITIAL CLIMB RESULTED IN 700LBS FUEL INBALANCE. DURING DESCENT FUEL TRANSFERED FROM LEFT MAIN TO RIGHT MAIN 400LBS. MAINTENANCE REMOVED AND REPLACED FUEL PROCESSOR UNIT IAW AMM 28-41-81. ACCOMPLISHED ALL REQUIRED TEST. SYSTEM CHECKS SATISFACTORY.