As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK MAINTENANCE FOUND FWD WET CORROSION ON 9 HOLE DOUBLER FR13-16 AS MARKED. REMOVED CORROSION BY BLENDING AT 9 HOLE DOUBLER BETWEEN FRAMES 13-16 (FWD WET AREA). MATERIAL REMOVED:H-100% NOMINAL .050" REMAINING .000" OUT OF LIMITS. REF EMB SRM 53-10-10/AD06 SRM 51-10-03. REMOVED AND REPLACED DOUBLER REF SRM 51-40-08. APPLIED TOP COAT TO RIVETS REF SRM 51-23-06. A/C REMAINS IN CHECK.