What was found
MCN - MAJOR REPAIR - DURING C-04 CHECK CORROSION WAS FOUND ON FORWARD END OF RT OUTBOARD PASSENGER SEAT TRACK AT Y1292, FR 12 TO FR 24. MAINTENANCE REMOVED CORROSION AND FOUND MATERIAL LOSS TO BE OUT OF LIMITS; REMOVED DAMAGED SECTION OF SEAT TRACK Y1292 FROM FR 12 TO FR 24; RECEIVED A NEW REPLACEMENT SEAT TRACK; INSTALLED REPAIR PART IAW A320 SRM 51-42-11, PG 23-28, FIG 9-12.