As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK, FOUND RIGHT WING INBOARD TRAILING EDGE FLAP INBOARD TRACK HAS SURFACE CORROSION AND PITTING. CLEANED OFF AND RE-EVALUATED. RT WING INBOARD FLAP, INBOARD TRACK IS WITHIN LIMITS IAW B737 GMM 57-53-18. NO FURTHER ACTION IS REQUIRED IAW RES NR 04473.