CURE: Check the serial number of the Hard Disk 20. If the serial number
is F619xxx or higher, and the controller board contains a HAL chip at
board location C3 (PAL is 16R6 is silk screened next to the chip),
remove and replace the Controller Board using a service spare. Reconnect
and power-up the Hard Disk 20. Try to initialize the drive. If
initialization fails, refer to the Hard Disk 20 Technical Procedures
for more troubleshooting information.