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It is always possible, indeed advisable, to remove dead branches from any kind of plant. You should use pruners or if the branch is large, you can use a saw. Cut the dead branch as close as possible to the live growth from which it is emerging, without cutting into the live growth. This article has more information on pandanus: https://www.gardeningknowhow.com/houseplants/screw-pine/indoor-screw-pines.htm