Not sure, but I spotted it at the lay up corner of AMDEP without
revenue service equipment.
I also saw TIB788T (without revenue service equipment as well)
parking beside SMB138Y but I can't confirm whether it is laid up as
well.
There are also some other buses parking at the lay up corner of
AMDEP.
I just saw 788T like a few days ago on cameo for 961 now its
probably on lay up. I wonder if AMDEP are going to use them for
TRG....