What was found
RIGHT VERTICAL STAB DRAG ANGLE CRACKED. R/H VERTICAL STAB DRAG ANGLE REQUIRES REPAIR IAW CRJ900 SRM 55-31-00-201-001-A01. UPON FURTHER INVESTIGATION, FOUND RH AFT DRAG ANGLE TO REQUIRE REPLACEMENT IAW CRJ900 SRM 55-31-00-201-001-A01. REMOVED RH AFT DRAG ANGLE IAW CRJ900 SRM 51-42-13-001-001-A01, 51-42-21-001-001-A01 AND 51-42-22-001-001-A01. LOCATED AND DRILLED NEW SERVICEABLE R/H AFT DRAG ANGLE P/N: AV670-21186-004 IAW CRJ900 SRM 51-40-11-001-001-A01. RH AFT DRAG ANGLE REQUIRES COUNTERSINK AND SURFACE PREP PRIOR TO INSTALL. COUNTERSUNK AND PREPPED SURFACE ON RH AFT DRAG ANGLE IAW CRJ900 SRM 51-40-11-001-001-A01. RH AFT DRAG ANGLE REQUIRES INSTALL. INSTALLED NEW SERVICEABLE RH AFT DRAG ANGLE IAW CRJ900 SRM 51-42-13-001-001-A01, 51-42-21-001-001-A01 AND 51-42-22-001-001-A01. REPAIR AREA REQUIRES EXTERNAL PAINT. PAINTED DRAG ANGLE IAW CRJ900 SRM 51-25-01-001-001-A01.