Also, the bloom spike should be removed to encourage growth. It needs to be cut short to about a 1" length.
I can see a few healthy looking roots and that one base leaf still looks good. You might discover that the potted roots aren't suffering much. Save as many viable roots as possible and take great care to preserve that last leaf. Avoid getting water on that leaf after repotting, because water on the leaves is what causes crown rot. In nature these type of plants grow sideways...a position which allows excess water to drain from the leaves instead of collecting in the central crown.
The roots should be just dry or nearly dry between waterings. Phals are prone to root rot from over watering.
Recovery from crown rot is possible but it's tedious and slow and other factors may interfere. Just do your best and practice patience. Root growth and/or new growth at the crown (basal keiki) will be positive signs that your plant is recovering.
Good Luck!
