As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 5 FLAP TRACK, CORROSION TRACK MOUNT HOLE. THIS REWORK INVOLVES REPLACING THE SERVICE BULLETIN 747-57-2207, INSTALLED BUSHING WITH NEW INCREASED OD BUSHING. THIS OD INCREASE COMPENSATES FOR THE INCREASE BORE DIAMETER THAT REMOVED THE CORROSION. THIS REPAIR IS APPROVED BY THE BOEING COMPANY PER ECRA N639FE-B747-010-EAC.