Suspect:
SMB13Z
(KJDEP/BBBP 189) -> (KJDEP
SP)
SMB13Z had not been seen on 189 since last
year.
TIB721K
(KJDEP 975*) -> (KJDEP/BBBP
189)
TIB721K had been doing 189 consistently since
this year, probably replacing SMB13Z.
*Deployment according to SGBuses Wiki