EL AL Matmid - LY75 Sunday - when does it return

The Ly75 out of TLV on Sundays.
lands Monday. but there is no Ly76 on mondays.
does the plane really stay in hkg for more than 24 hours to return on Tuesdays ?

(i made a mistake with the subject: it's LY75, TLV-HKG)

Hipmunk is showing me a LY 76 on Mondays. Can you give specific dates?

This week, there was LY75 on 26/2 (sunday), but no LY76 on 27/2 (monday)
next week it changes !
there is LY75 on 5/3 (monday) but no LY76 on 6/3 (tuesday)

Probably cheap maintenance.