What was found
DURING C4 CHECK, DISCOVERED EXFOLIATION CORROSION ON RT INBOARD SEAT TRACK AT FR 42+17", Y1292. CORROSION WAS FOUND TO BE OUT OF LIMITS IAW AIRBUS 320 SRM 53-31-15 FIG 101. MAINTENANCE REMOVED SEAT TRACK FROM FS 41 TO FS 47, Y1292 IAW AIRBUS 320 SRM 51-42-11. RECEIVED NEW SEAT TRACK AND INSTALLED FROM FR41 TO FR47, Y1292 IAW AIRBUS 320 SRM 51-42-11 AND 51-72-11.