Edit: the information in this post is incorrect. See:
The approach is present in the X-Plane 12 database as provided by Navigraph:
APPCH:010,A,R33,AMGUT,AMGUT,LI,P,C,E C, ,010,IF, , , , , , , , , , ,+,03000, , ,-,180, , , , , , , ,B,P,S;
APPCH:020,A,R33,AMGUT,CR804,LI,P,C,E B, ,010,TF, , , , , , , , , , ,+,02900, , ,-,170, , , , , , , ,B,P,S;
APPCH:030,A,R33,AMGUT,CR806,LI,P,C,EE , ,102,TF, , , , , , , , , , ,+,02000, , ,-,160, , , , , , , ,B,P,S;
APPCH:010,A,R33,DEDRA,DEDRA,LI,P,C,E C, ,010,IF, , , , , , , , , , ,+,04000, , ,-,180, , , , , , , ,B,P,S;
APPCH:020,A,R33,DEDRA,AMGUT,LI,P,C,E , ,010,TF, , , , , , , , , , , , , , ,-,180, , , , , , , ,B,P,S;
APPCH:030,A,R33,DEDRA,CR804,LI,P,C,E B, ,010,TF, , , , , , , , , , ,+,02900, , ,-,170, , , , , , , ,B,P,S;
APPCH:040,A,R33,DEDRA,CR806,LI,P,C,EE , ,102,TF, , , , , , , , , , ,+,02000, , ,-,160, , , , , , , ,B,P,S;
APPCH:010,A,R33,ZESEL,ZESEL,LI,P,C,E C, ,010,IF, , , , , , , , , , ,+,06000, , , , , , , , , , , ,B,P,S;
APPCH:020,A,R33,ZESEL,CR823,LI,P,C,E , ,010,TF, , , , , , , , , , , , , , ,-,180, , , , , , , ,B,P,S;
APPCH:030,A,R33,ZESEL,CR804,LI,P,C,E B, ,010,TF, , , , , , , , , , ,+,02900, , ,-,170, , , , , , , ,B,P,S;
APPCH:040,A,R33,ZESEL,CR806,LI,P,C,EE , ,102,TF, , , , , , , , , , ,+,02000, , ,-,160, , , , , , , ,B,P,S;
APPCH:020,R,R33, ,CR806,LI,P,C,E F, ,102,IF, , , , , , , , , , ,+,02000, , ,-,160, , ,LICR,LI,P,A, ,B,P,S;
APPCH:025,R,R33, ,CR807,LI,P,C,E , ,102,TF, , , , , , , , ,0690,0014,+,01440, , ,-,160,-380, , , , , , ,B,P,S;
APPCH:027,R,R33, ,CR808,LI,P,C,E ,L,102,RF, , , , , ,001300, , , ,0020,+,00620, , ,-,160,-380, ,CR007,LI,P,C, ,B,P,S;
APPCH:030,R,R33, ,FTP33,LI,P,C,E M, ,102,TF, , , , , , , , ,3390,0013, ,00083, , ,-,160,-380, , , , , , ,B,P,S;
APPCH:040,R,R33, ,CR809,LI,P,C,E M , ,010,CF, ,CDC,LI,D, , ,2194,0510,3390,0043,+,01050, , ,-,180, , , , , , , ,B,P,S;
APPCH:050,R,R33, ,ZESEL,LI,P,C,E ,L,010,RF, , , , , ,002000, , , ,0051, , , , ,-,180, , ,CR011,LI,P,C, ,B,P,S;
APPCH:060,R,R33, ,CR823,LI,P,C,E , ,010,TF, , , , , , , , , , , , , , ,-,180, , , , , , , ,B,P,S;
APPCH:070,R,R33, ,CR816,LI,P,C,E , ,010,TF, , , , , , , , , , , , , , ,-,180, , , , , , , ,B,P,S;
APPCH:080,R,R33, ,AMGUT,LI,P,C,E ,L,010,RF, , , , , ,002100, , , ,0068,+,03000, , ,-,180, , ,CR012,LI,P,C, ,B,P,S;
APPCH:090,R,R33, ,AMGUT,LI,P,C,EE H,R, ,HM, , , , , , , , ,0120,0026,+,03000, , ,-,180, , , , , , , ,B,P,S;
Which aircraft or addon are you using, when you cannot find the approach?
Regards,
Tim