What was found
LT WING NR 4 SPOILER INBOARD HINGE ARM OUTBOARD SURFACE DELAMINATED, 20MM X 15MM DEPTH: 1.30MM. INBOARD HINGE ARM LOWER SURFACE DELAMINATED, 15MM X 20MM DEPTH: 1.90MM. OUTBOARD HINGE ARM OUTBD SURFACE DELAMINATED, 30MM X 20MM DEPTH: 1.27MM. LT WING NR 4 SPOILER INBOARD HINGE ARM DELAMINATED. COMPLIED WITH EA 6-5750-T0357146. THIS IS CAT A REPAIR. MAJOR REPAIR, IAW GMM 6-2-6-2-100.