Smoke/Soot From Power Supplies

This Field Change Order (FCO KN15-AA-0003) provides instructions for correcting a manufacturing issue in certain DEC 3000 AXP power supply units (H7883-AA and H7883-YA) that can result in the emanation of smoke and soot. The repair involves replacing the existing power supply harness (Part No. 70-30004-01 Rev A01) with an updated version (Rev B01). The document includes safety precautions, a step-by-step installation guide, and FCO charging information for service personnel.