FCO 7XXX-F003, Spares shipped prior to being FCC compliant

This Field Change Order (FCO 7XXX-F003) addresses the issue of non-FCC compliant spare parts for VAX and DEC 7000 and 10000 systems. Spares shipped before April 1993 were not FCC compliant, potentially leading to lower revision parts being used in customer machines, even though the original systems were compliant.

The FCO mandates inspecting and upgrading all existing stock of these spares to minimum required revisions. For customer machines where suspect "down-rev" parts (such as DC Distribution Assemblies, 4:1 Cables, Blazer Long Hoses, and various AC Input Boxes) may have been installed, these parts must be replaced. The document provides detailed, step-by-step instructions for the removal and installation of the AC Input Box, including safety procedures, power-down/power-up sequences, and post-installation checks. It also instructs on replacing non-compliant 4:1 cables. All FCO activities and material usage must be reported on the LARS form, with specific charging information provided based on warranty status.