What was found
SIDE ROLLER SLAT TRACK 2-2 900 RH - RH SIDE ROLLER ASSY 0.750 DIA. SLAT TRACK PN CC670-12027-3 (QTY 2) AND SIDE ROLLER ASSY 0.875 DIA. SLAT TRACK PN CC670-12048-3 (QTY 2) ARE DUE LIFE LIMIT. REMOVE AND DISCARD. REPLACE WITH SERVICEABLE PARTS IAW 27-630-815. REMOVED AND INSTALLED NEW 4EA SLAT TRACK ROLLERS ON THE L/H 1-2 SLAT TRACK IAW CRJ 900 AMM 27-81-44-400-802-A01.CHECK GOOD AND NO DEFECTS NOTED. COMPLIED WITH SKYWEST TASK CARD 27-630-815-A01.