Looks like this time round 159's fleet is the most affected one.
As it is a non WAB service, it seems like the Citaros from 159 had
been withdrawn and went over to support other WAB services in HGDEP
that are affected by the K230UBs transfer. I wonder if the Citaros
from 83, 107 and 153 are affected too.
Still remember back in Nov 2001 when 170 went from NAC to FAC,
many services like 151 kana downgraded from FAC to many NAC in its
fleet. If I remembered correctly 91 and 191 downgraded to fully NAC
too.
i wonder why service 159 has many old forks along way no WAB
service? SBST is making a mistake or next month new citaro buses
joining the service?