You've got that the wrong way round I think. First there was BASSA. Then when people became disaffected by BASSAs militancy a breakway union, CC89 was formed.
Totally and wholly inaccurate - CC89 was formed as the WW section of BA was in disagreement with the SH section - hence why most of CC89 members were from WW, plus they tried to entice a lot of Midfleet crew into their ranks.
Total garbage that it had anything to do with BASSA militancy - you really should learn your facts before spouting such rubbish