What was found
CORROSION ON STRINGER 42L BETWEEN FR 33 AND 34. CORROSION FOUND TO BE OUT OF LIMITS IAW SRM 53-21-13, FIG 102. REMOVED STRINGER AND FABRICATED NEW IAW SRM 51-72-11, PG 1 & 2 & 51-21-11 PG 1, 2, 3, & 4. INSTALLED STRINGER IAW SRM 51-72-11 PG 1 & 2. MAJOR REPAIR.