As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE NR 2 FEEDER TANK WOULD NOT FUEL TO THE HIGH LEVEL. TROUBLESHOOTING IDENTIFIED THE HIGH LOW SWITCH (63Q) ON THE FUEL PANEL SWITCH AS DEFECTIVE. REPLACED THE SWITCH WITH NEW. FUNCTIONAL CHECKS SATISFACTORY. REF: MM 28-50-60-650-901.