As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CPCP CHECK INSPECTION, FOUND LEFT HAND FUEL TANK INTERNAL RIB FLANGE IS CRACKED AT WS 656.5 FORWARD SIDE, MARKED M1. INSTALLED REPAIR ON CRACKED RIB IAW B727 SRM 57-10-5. CORROSION TASK CARD NUMBER C57-571-01 PART 01 OF 02. NON-ROUTINE TASK CARD NUMBER 106126.