As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK, MAINTENANCE REPORTED LEVEL 2 CORROSION AT THE L2 DOOR MOST AFT NUT-PLATE CLIP AT THE LOWER SILL BEAM. MAINTENANCE REMOVED AND REPLACED THE MOST AFT NUT-PLATE CLIP AT THE LOWER SILL BEAM AT L2 DOOR IAW SRM 51-41-01, 51-40-02 & 51-41-02. AIRCRAFT IS STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.