What was found
SAL - DURING BC4 CHECK DISCOVERED LEVEL 2 GALVANIC CORROSION ON SEAT TRACK AT FS 16 AND Y765. MAINTENANCE REMOVED CORROSION AND FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-31-15 FIG 101, PAGE 102. REMOVED AND INSTALLED NEW SEAT TRACK BETWEEN FR 16 AND FR 24, ALSO AT Y765 IAW AIRBUS 320 SRM 51-72-11.