This is IPKAM2Z for ILS S 24 into LIRN. I've manually modified altitude constrait at BENTO from 7500A to 7500, don't be surprised.
We're seeing that the lateral track RN411-BENTO seems to be completely off. The correct track is a right turn (DF leg) into BENTO after overflying RN411:
FMS navdata coding seems to be ok-ish (at least it's CF-DF conformal to AIP):
STAR:010,5,IPKA2Z,RW24,IPKAM,LI,E,A,E , , ,IF, , , , , , , , , , , , , , , , , , ,LIRN,LI,P,A, , , , ;
STAR:020,5,IPKA2Z,RW24,RN411,LI,P,C,EY , , ,CF, ,BAR,LI,D, , ,2669,0936,1290,0036, , , , , , , , , , , , , , , , ;
STAR:030,5,IPKA2Z,RW24,BENTO,LI,P,C,EE H, , ,DF, , , , , , , , , , , , , , , , , , , , , , , , , , ;
The 39.3NM trackmiles between RN411 and BENTO are far off. Interestingly, the vertical profile seems to be fine, with around 1850ft to lose between RN411 and BENTO on a 3° descent path. So the vertical profile seems to calculate a different lateral track internally?!
I can't say what the bird would have flown as I got a DCT BENTO.
Best regards,
Daniel