As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 4C INSPECTION TASK 5320-151-01I, REVEALED AFT EMERGENCY EXIT GUIDE PIN FITTINGS TO HAVE CORROSION BETWEEN FITTINGS AND THE EXIT SILL LOWER ATTACHE ANGLE. FURTHER INVESTIGATION REVEALED THAT THERE IS NO PRIMER OR SEALANT BETWEEN OR ON THESE PIECES. REPLACED CORRODED ANGLE WITH SERVICEABLE PART IAW EMB SRM CHAPTER 51.