SBS5052T has been on sv13 for the past month or so since it left
sv76. My guess it is perm already cause it has been doing the same
slot ard 2pm at siglap rd. While 8831S likely is out, I think that
this might be the replacement for it.
SBS967L seems to be out of sv135 fleet. Its slot behind 8757Z
usually is 967L but recently 1965K seems to be doing it for the
past 1 month or so.
The next bus to be gone to spare is likely 977H, its headlights
are tinted black and the bus doesnt have the kicking sound of the
ZF when it goes to next gear. 2808A might then be the replacement
as I have seen it on off during this past few months.
Quite a waste to lets these DMs go, because they have stayed on
135 since its 3 has been brought over from BN.