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 LVL 2 CORROSION AT FWD CARGO DOOR NUT SUPPORT AT THE LOWER BEAM AS MARKED WITH RED GREASE PENCIL. REMOVED AND REPLACED FWD CARGO DOOR NUT SUPPORT AT THE LOWER BEAM AND RESTORED SURFACE PROTECTION REF:SRM 51-40-08, 51-23-06 A/C REMAINS IN CHECK.