Replaced T1-MK1 target ladder with the new ladder design which has an integrated upper slide plate (2 less sealing locations) and no c-seal grooves.  C-seals replaced with aliuminum delta seals.Transfered all target cassettes to new ladder in the same positions.  Performed helium leak check at interface with bellows flanges and all cassette locations.  No leaks detected.

Target still requires installation of new protect monitor.  Beam-spot and elevations procedure must still be performed.