[K12OSN] Failed software raid 5

[ATM Logic]

Just wondering if anyone on the list may be able to point me in a good
direction for getting support on a failed software Raid5 (3 drives)?

Booting in rescue mode it does not see the installation, Knoppix does not
know file system, (can read the first partition of all three drives, just
not the 2nd)  S.M.A.R.T. status is good on the drives, size looks as it
should...  File system broke after a serious power failure...

Any thoughts would be great.  Thanks, better yet, if anyone knows of a
Bootable ISO that may be able to detect and read a software raid, that would
be GREAT!!!

Thanks,