Part Number: 138-320259-13 (Washer, elevator position sens) Part Number: 138-320259-15 (Clamp, elevator position senso) Part Number: 138-320259-17 (Fitting elevator position sen) Part Number: 138-320259-19 (End link, elevator position) Part Number: 138-320259-21 (Mounting bracket, elevator pos) Part Number: 138-320259-23 (Plate, elevator position sensor) Part Number: 138-320259-7 (Bracket assy, elevator positio) Part Number: 138-320268-0003 (Bracket) Part Number: 138-320268-0005 (Clamp, bracket assem) Part Number: 138-320268-0007 (Clip, bracket assemb) Part Number: 138-320268-0009 (Gasket bracket assem) Part Number: 138-320268-0011 (Arm - aileron position sensor) Part Number: 138-320268-0013 (Arm-aileronpositionsensorinstl) Part Number: 138-320268-0017 (Bracket-aileron po)