Recoverable soft errors, unrecoverable hard errors

This Field Change Order (FCO) addresses an issue with the accumulation of recoverable (soft) errors and the development of unrecoverable (hard) errors on RD53 disk drives in BA123 enclosure-based MicroVAX, VAXstation II, and MicroPDP 1183 systems. The resolution involves replacing the existing 17-00861-01 or BC05W-02 interface cable with a new shielded cable (17-01520-01) provided in the FCO kit. The document provides detailed installation instructions, including system shutdown, safety precautions involving electrostatic discharge, and specific reformatting procedures for the drives using MDM or XXDP diagnostic software.