As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FVR UNSATISFACTORY APU OVERSPEED AT FL 390 AUTO SHUTDOWN INITIATED. REMOVED AND REPLACED APU FUEL CONTROL UNIT REF MM 49 31 11 000 801 AND 49 31 11 400 801 STEPS A THROUGH AND INCLUDING H(2) OF INSTALLATION. REMOVED AND REPLACED APU ELE CONT UNIT REF MM 49 61 12 400 801, ACCOMPLISHED LEAK AND OPS CHECK REF MM 49 61 12 AND MM 49 31 11, OPS CHECK GOOD. VERIFICATION FLIGHT SUCCESSFUL.