What was found
F.S. 280 R/H SHEAR BOX ATTACH ANGLE AT RBL 11 IS CRACKED. F.S. 280 R/H SHEAR BOX O/B ATTACH ANGLE P/N CC670-34099-2 IS FOUND TO BE CRACKED ALONG ENTIRE RADIUS AND REQUIRES REPLACEMENT. REMOVED F.S. 280 R/H SHEAR BOX O/B ATTACH ANGLE IAW CRJ-900 SRM 51-42-21-001-001-A01. LOCATED AND DRILLED NEW SERVICEABLE ATTACH ANGLE P/N CC670-34099-2SB IAW CRJ 900 SRM 51-40-11-001-001-A01. INSTALLED F.S. 280 R/H SHEAR BOX O/B ATTACH ANGLE IAW CRJ 900 SRM 51-42-21-001-001-A01.