the flashing question mark means that the system cannot find a valid system folder from which to boot.
Norton Utilities, you actually use that???, did not see the disk and your System 9 install CD failed to find it also.
While a faulty SCSI device or cable can cause this problem, it may not be the whole picture.
Replace that HD, reinstall the System from the installation disk and go back to production.
I'm not even going to ask about backups.

You can order a replacement drive, by phone, from any of the usual on-line retailers.

80GB ATA Hard Drive, $47.99 from Other World Computer, 1-800 275 4576

On that machine, any drive over 127GB would be wasted.

Good Luck