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 STA 656.50 INTERNAL UPPER CENTER STRINGER IS CRACKED ON BOTH SIDES OF TAB TO RIB ATTACH POINTS, MARKED M5 UPPER. REPAIRED IAW B727 SB 727-57A159 FIGURE 4. CORROSION TASK CARD NUMBER C57-571-01. NON-ROUTINE TASK CARD NUMBER 106869.