EIU EEC
When U have S/F problems the speed will be selected on final APP as per QRH (there is no harm of managing spd on final APP). At GA initiation, the spd will revert to managed and the Vapp will be the target until U reach ACCL ALT where the Target managed spd will jump to the Green Dot speed. at this moment (and not before) U should pull the Spd sel and select appropriate spd (Vmax-10). Pulling SPD knob before ACCL ALT will engage OPN CLB.