How to restore RAID5 Array

I have a RAID5 array consisting of 3 identical 2TB drives. Suddenly GRUB wouldn't boot anymore and gave the error out of disk.

Eventually booted a livecd and ran some mdadm commands:

mdadm --examine /dev/sda1 gives no md superblock detected on /dev/sda1. But when examining /dev/sdb1 and /dev/sdc1/ gives the output in the attached photo's.

http://ift.tt/1DfcqEx http://ift.tt/1E12fZI

Any help in solving or diagnosing this problem would be greatly appreciated. Thanks!