What was found
***CORROSION*** SEAT TRACK AT FR 20 RBL 23 IS CORRODED . REPLACED SEAT TRACK RBL23 FR 20 TO FR 30 IAW A220 ASRP BD500- A-J51-42-20-00AAA-078A-A AND BOMBARDIER DWG:C02312600 REV E, DWG :C01735610 REV B, DWG:C01712000 REV A. (LP# 0876752)