As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C22 DISCOVERED LEVEL 2 CORROSION ON STRINGER 25L AT BS 967. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-00-03-1A1. MAINTENANCE REMOVED AND INSTALLED REPLACEMENT STRINGER FROM BS 967 TO BS 1016 AT STR 25L IAW BOEING 737-300 SRM 51-10-02-0G FIGURES 3 AND 8.