Join Date: Jul 2003
Location: CGK
Programs: SQ TPP30, CX DM, DL P, FB P, AA G, GA CB, WOH LGLOB, HH D, MB G, Hertz P
Posts: 2,887
From what I have seen so far, it seems like SQ blocks some Y seats, for example row 31 to around 35 for PPS and Gold members. They release them either at phone check-in or counter check-in. Thus, those 'occupied' seats in the forward economy cabin. Some of the seats are usually still available.