What was found
L/H DRAG ANGLE ON VERT. STAB HAS A CRACK (MARKED W/ TAPE) REMOVED UNSERVICEABLE LH AFT DRAG ANGLE IAW CRJ900 SRM 51-42-21-001-001-A01 AND 51-42-13-001-001-A01. LOCATED AND DRILLED NEW SERVICEABLE LH AFT DRAG ANGLE PN: AV670-21186-003 IAW CRJ900 SRM 51-40-11-001-001-A01. COUNTERSUNK FASTENER HOLES ON LH AFT DRAG ANGLE IAW CRJ900 SRM 51-40-11-001-001-A01. INSTALLED NEW SERVICEABLE LH AFT DRAG ANGLE PN: AV670-21186-003 IAW SRM 51-42-21-001-001-A01 AND 51-42-13-001-001-A01 AND 51-42-22-001-001-A01.