Capital at LTN
In October 1989, BZ were operating 3 DUB flights on weekdays with 146s and 1 with SH36, also 2 BHD with SH36 and 1 with 146. The SH36 night-stopped in DUB (or at least, didn't return to LTN). The 146 left for BHD at 1740G and returned at 0810G.
I feel sure they operated to/from LBA on a 'fare-paying positioning flight, but I can't find the details.
Incidentally, they were competing with 4 daily FR 1-11s to DUB and two BY732s to BFS.