What was found
WEAR AND CORROSION IN ALL BORE LUGS (R1,R2,R3,R4,R5,R6) AT CENTER HINGE FITTING AND HINGE 4 LUG UPPER OF AILERON WAS FOUND. BORE LUGS R1, R6 & HINGE 4 LUG UPPER WERE CLEANED PER CRJ 900 SRM 51-26-00-001-001-A01 AND NO DAMAGE FOUND. LUGS R3 Y R4 WERE REPAIRED PER 690-57-61-457 REV: -- AND LUGS R2 & R5 WERE REPAIRED PER REO 670-57-61-107 REV. -B