Removed and replaced the annulus ion pump for GV9 at Y-Mid.  No issues were encountered during the replacement, after the new pump was installed the annulus system was pumped for about 3 hours with an aux pump cart.  After 3 hours the ion pump was able to maintain vacuum, at which time the aux cart was decoupled and turned off.  GV9 annulus system back to nominal.

Done under WP#8091.