What was found
MCN - MAJOR REPAIR - DURING C-17 CHECK, EXFOLIATION CORROSION WAS FOUND ON STRINGER SPLICE BETWEEN BS 355 AND BS 363, STR 27 LT. MAINTENANCE REMOVED CORRODED STRINGER SPLICE FROM BS 355 TO BS 363, 27 LT; FABRICATED A NEW REPLACEMENT SECTION OF STRINGER SPLICE CHANNEL; INSTALLED REPAIR PART IAW B737-300 SRM 51-40-02, FIG 8 AND 12.