Originally Posted by
giggitygiggity
We've used seat blockers in the past which disable the seat entirely and can be used to reduce the number of required crew. For starters, the plan is not to use the middle seats so right away, that's 1/3rd of the seat capacity down. 156 seat A319 becomes 104. Block another 5 and you only need 2 crew.
I believe on the Airbus 319 / 320 you can't have less than 3 Cabin Crew even if under 100.