As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ACCOMPLISHMENT OF CPCP CHECK INSPECTION, FOUND LEFT HAND WING INTERNAL LOWER SURFACE STA 656.50 STRINGER 6 HAS CRACKED DOUBLER AT RIB TO STRINGER ATTACH POINT. REPAIRED IAW BOEING SRM 57-10-5 AND BSB 727-57-0127 FIGURE 2. CORROSION TASK CARD NUMBER C57-571-01. NON-ROUTINE TASK CARD NUMBER 107192.