As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY CHECK - AFT SERVICE DOOR AFT EVACUATION SLIDE FITTING SERRATED SLIDE SHIM FORWARD NUT HOLDER PLATE HAS SIGNS OF CORROSION ON BOTTOM SIDE OF LOWER BEAM. REMOVED AND REPLACED AFT SERVICE DOOR LOWER BEAM AND AFT EVACUATION SLIDE FITTING FWD NUT HOLDER PLATE.