What was found
OKC - DURING C-CHECK, FOUND CORROSION ON FLOORBEAM AT BS 312, BOTTOM AFT SIDE OF UPPER CHORD AT BL 0, LBL 8 AND RBL 8. REPAIRED PER DRAWING 53-01181-1 AND 8110-3. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
OKC - DURING C-CHECK, FOUND CORROSION ON FLOORBEAM AT BS 312, BOTTOM AFT SIDE OF UPPER CHORD AT BL 0, LBL 8 AND RBL 8. REPAIRED PER DRAWING 53-01181-1 AND 8110-3. (M)