What was found
CENTER TANK (WING) TOP AFT SPAR FLANGE (CAP) HAS LEVEL II CORROSION ON TOP OF HORIZONTAL FLANGE AROUND FASTENER HEADS AT BL 23L FS 857 REF N/R NR 5086.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CENTER TANK (WING) TOP AFT SPAR FLANGE (CAP) HAS LEVEL II CORROSION ON TOP OF HORIZONTAL FLANGE AROUND FASTENER HEADS AT BL 23L FS 857 REF N/R NR 5086.