on-condition maintenance[¦ȯn kən¦dish·ən ′mānt·ən·əns]
Examination of those aspects of an installation that are predictive of pending failure, followed by performance of preventative maintenance activities before occurrence of total failure.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Maintenance of machinery when condition monitoring equipment indicates that a mechanical failure is about to occur.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
A type of aircraft maintenance in which parts are replaced only when their condition appears no longer airworthy, instead of at predetermined intervals of operation.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved