As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR SCHEDULED MAINTENANCE C CHECK VISIT. IN COMPLIANCE OF TASK CARD ATI-53-556-00-01, IDENTIFIED CORROSION AT AFT LOWER CARGO LOWER DOOR CUTOUT LOWER SILL CORD AT APPROXIMATELY RBL44 STA 1270, CORROSION LEVEL 2. REMOVED AND REPLACED SILL CHORD. NO ADDITIONAL DEFECTS NOTED.