What was found
***CORROSION*** CABIN SEAT TRACK UPPER SURFACE FR 74 LBL 43 WL 151.5. REMOVED AND REPLACED SEAT TRACK BETWEEN FR61+13" TO FR 74+6", LBL 43, WL 151.5 IAW BOMBARDIER DWG : C01342701 REV :G AND A220 ASRP BD500-A-J51-42-20-00AAA-0748A-A. ** -0748A-A SHOULD READ -078A-A88 (LP# 0869962)