As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CORROSION ON THE ON THE UPPER SIDE OF THE TOP SKIN AT STATION 870, RBL 45 TO 65 WL 190. MAINTENANCE BLENDED OUT THE CORROSION, FLAP PEENED AREA IAW OHM, TREATED AND INSTALLED REPAIR STRAP IAW UPS EO 727-57-1648.