As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT EXPERIENCING FUEL QUANTITY/FUEL TRANSFER PROBLEMS. 10-16-07 AFTER TROUBLESHOOTING ISOLATED PROBLEM TO FUEL COMPENSATOR IN NR 4 TANK. REPLACED NR 4 FUEL MAIN TANK COMPENSATOR WITH NEW UNIT PER MM 28-41-02-4 01. SYSTEM CHECKED OK FOR SERVICE.