What was found
PRODUCTION REQUEST: AFT L/H O/B SEAT TRACK HAS SIGNS OF CORROSION. REMOVED AND REPLACED SEAT TRACK AFT L/H O/B IAW A220 ASRP BD-500 -A-J51-42-21, J51-40-11. REMOVED CORROSION, FOUND OUT OF LIMITS IAW A220 ASRP J51-21-00, J53-42-21. (LP# 1259625)