 While the failure of the SIC&DH did not disable the telescope, replacing the unit restores the redundancies.The final major task was to install the Soft-Capture Mechanism (SCM), which includes the Low Impact Docking System (LIDS) that will allow spacecraft in the future to dock with the telescope, and to safely de-orbit the telescope at the end of its life.Feustel also installed two of four Latch Over Center Kits, or LOCKs, that make opening and closing Hubble's large access doors easier for the remaining spacewalks.