Icing of probes. They had they same probes and mod state as the Air France A340.The procedure isn't very hard. Its just takes a little bit of time to read though and think about. In the old days we use to call it "Fly the aeroplane". Knowing the attitude and power for climb, cruise and descent etc is part of the job. You only need to look just behind the FDs to see it if not sure what they are.