As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOWER WEB OF DELTA KEEL BEAM HAS CORROSION ON UPPER SURFACE AROUND SUPPORT STRUCTURE AND LOWER SURFACE AROUND FASTENER HEADS, BS 740-870. REMOVED AND REPLACED LOWER WEB OF DELTA KEEL BEAM BS 740 TO BS 870 RBL 5 TO LBL 5 PER SRM 51-20-1.