As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING D-CHECK, FOUND NOSE COMPARTMENT BETWEEN BS 211.8-219.8 APPROXIMATELY BLR 20-35 CORROSION AT INTERCOSTAL FRAME. CORROSION BEYOND LIMITS, REMOVED INTERCOSTAL FRAME AS PER SRM 51-30-2. FABRICATED NEW FRAME AS PER SRM 51-40-3 AND INSTALLED AS PER SRM 51-10-1 PAR 4.