Powers off within a permanent false power supply

This Field Change Order (FCO) outlines the replacement of H7142 power supplies (30-23506-01) manufactured by CEAG for RA90 and RA92 disk drives. The affected units have a revision level of 'N' or lower and may cause the drives to power off due to a false over-temperature condition. The rework involves replacing the old power supply with a new or reworked unit from the specified EQ kit. The document includes detailed applicability criteria based on serial number plant codes, specific drive ranges, and instructions for safely performing the power supply replacement.