About 6pm plus. It's not rare actually, for what I know many Merc
cameos on 178 is actually done by this bus. The picture below was
taken last year in March I guess ... ...
the only Z i took on an OAC was 474Z, but 832Z either cameos on
187 or other services.
For remaining quarter of last year, only 474,751Z cameoed on
178, i checked