As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(REF: MDR NR MDR002/06) STRIP OF CORE ASSEMBLY NOTED FRETTAGE DAMAGE TO 3 LOCATIONS ON THE NR 3 POSITION FUEL NOZZLE DRAIN TUBE. THE DEEPEST WAS TO A DEPTH OF .016 INCH. THE ROUTE CAUSE OF THE FRETTAGE HAD BEEN DETERMINED AS CONTACT WITH RIVETS ON THE DEFLECTOR ASSY. THE MODULE (41X24410) WAS REFURBISHED IAW BA REFURBISH SPECIFICATION AND IAW 72-41-XX AT LAST SHOP VISIT. (K)