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 PASSENGER CABIN SEAT TRACK LOCATED AT BS 360 LEFT OUTBOARD SIDE. REMOVED THE CORRODED SECTION OF SEAT TRACK AND REPLACED WITH A NEW SECTION MADE OUT OF BOEING EXTRUSION P/N BAC 1520-792. WORK DONE IAW BOEING 737 SRM 53-10-5 FIGURE 2, 53-10-01 PAGE 18, AND 51-10-2. (M)