What was found
FWD SEAT TRACKS HAVE CORROSION ON FWD END OF TRACKS AS MARKED ( FR20-RBL23.00, FR20-RBL 43.50, AND FR20 RBL 23.00 ) RE 290201. REMOVED AND REPLACED FWD SEAT TRACKS FR19- FR 30 RBL 2300 AND RBL 43.50. (NO DAMAGE FOUND ON LBL 23.00. IAW A220 ASRP BD500-A-J51-42-21--AAA-078A-A.