As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE C CHECK INSPECTION, FOUND LEVEL 2 CORROSION: EXFOLIATION CORROSION ON STR 31 AT FS 1805. REMOVED CORROSION ON STR 31, FOUND TO BE OUT OF LIMITS. REPAIRED STR 31 IAW L1011 SRM'S 53-13-00 AND 53-12-00. NON-ROUTINE TASK CARD NUMBER 103555.