Where's JF when you need him ? Bit late to ask him now, I guess.
intake accelerates air to the right and therefore produces force to the left
More a case of the airflow's coming from the right, gets sucked into the intake and, in so doing, turns a corner. The action of turning the corner produces a change in momentum and the lateral component of the force provides a yawing moment to the left and, hence, a problem for P/O Bloggs.