What was found
NR 5, FLAP TRANSMISSION BALL SCREW NUT ASSY HAS PITTING IN GROOVE. REPLACED NR 5 FLAP TRANSMISSION BALL SCREW NUT ASSY IAW AMM 27-51, REFER TO NR00086.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
NR 5, FLAP TRANSMISSION BALL SCREW NUT ASSY HAS PITTING IN GROOVE. REPLACED NR 5 FLAP TRANSMISSION BALL SCREW NUT ASSY IAW AMM 27-51, REFER TO NR00086.