DonQuixote23,
Could a possible action in the event of either an MR chip light or vibrations be to go down to very low altitude and slowly limp home? At least in that case if something goes totally pear-shaped the fall is survivable.
In this case, unfortunately, the crew had neither of these indications prior to a catastrophic failure.
http://www.aaib.gov.uk/cms_resources...1%20G-REDL.pdf