As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK FOUND CORROSION ON FWD WET AREA R/H SILL BETWEEN FR12 AND FR14 IN 4 LOCATIONS AS MARKED. REMOVED DAMAGE BY BLENDING ON FWD WET AREA R/H SILL BETWEEN FR12 AND FR14 WITH THE DEEPEST DIMENSIONS L=3.5XW=1.25XH=.022. OUT OF LIMITS REF SRM 53-10-10AD01. REMOVED AND REPLACED FWD WET AREA FWD R/H SILL BETWEEN FR 12 AND FR 14 REF EMB SRM 51-40-08. PN 170-05663-005