As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*LH WING LOWER PLANK HAS FRETTING FROM CONTACT WITH WING FAIRING 193AB AT WS 45.00L AND AFT EDGE. (C-CHECK) RO 3/24/2021 BLENDED OUT FRETTING ON LH WING LOWER PLANK AFT EDGE AT WS45 AND FOUND IN LIMITS REF REO 601R-57-21-880 REV. D, 2017/03/06 ALL STEPS COMPLIED WITH, COMPLIED WITH 51-900-1003-SKY.