FCO 64XMX-S001, VAX 6000 embedded storage controls

This Field Change Order (FCO) 64XMX-S001 addresses a design flaw in early shipments of VAX 6000 series systems that include embedded storage. The original system cabinet front door prevented access to the embedded storage controls and indicators without opening the entire cabinet, which was deemed inconvenient and potentially problematic for unqualified personnel. The FCO's solution is to replace the existing front door with a new design (part number 70-26931-01) that features an opening specifically for accessing these embedded storage controls and indicators. The document provides detailed, step-by-step instructions for the door replacement process, which is estimated to take one hour, and clarifies that this procedure applies only to "waivered systems" (not general field upgrades). It also includes instructions for returning the old door and requirements for reporting the FCO activity and updating site management guides. The FCO was released on November 15, 1989.