As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCN - DURING C22 CHECK DISCOVERED CORROSION ON AFT CARGO FLOOR WEB ATTACH ANGLE AT BS 767+6" TO 785 AND BL 19R. CORROSION WAS REMOVED AND FOUND TO BE OUT OF LIMITS IAW BOEING 737-300 SRM 53-60-15-1A1 FIG 101. MAINTENANCE REMOVED AND INSTALLED NEW ATTACH ANGLE AT BS 767+6" TO 785 AND BL 19R IAW BOEING 737-300 SRM 53-00-15-1A1.