As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED MAINTENANCE VISIT, LEVEL 2 CORROSION WAS DISCOVERED ON A CABIN FLOOR SUPPORT ANGLE LOCATED AT BS 277 BL 10L WL 208.1. REMOVED THE CORRODED SECTION OF FLOOR SUPPORT, FABRICATED AND INSTALLED REPLACEMENT PARTS IAW BOEING 737 SRM 53-10-9 FIGURE 1, 53-10-1 FIGURE 1, AND 51-40-4. (M)