What was found
MCN - MAJOR REPAIR - DURING C-18 CHECK EXFOLIATION CORROSION WAS FOUND ON THE END OF STRINGER 23 R/H AT BS 357. MAINTENANCE REMOVED DAMAGED SECTION OF STRINGER 23 R/H, AT BS 326 TO BS 357. FABRICATED NEW SECTION OF STRINGER AND INSTALLED REPAIR PARTS IAW B737-300 SRM 53-00-03, FIG. 201, PG. 201-207.