Flow Control, Nov. 1, 2016, by Michael J. Trainor.
http://www.flowcontrolnetwork.com/a-road-map-for-optimized-maintenance

"Unexpected failure of machinery is never a welcomed option for any plant, especially in the case of critical assets. Productivity may take a big hit when an asset goes down for emergency fixes. Could a developing problem have been detected earlier? Could the failure have been prevented or even predicted? An operation’s maintenance strategy — or lack of one — holds the key."