unscheduled maintenance


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unscheduled maintenance

[¦ən′skej·əld ′mānt·ən·əns]
(industrial engineering)
Those unpredictable maintenance requirements that had not been previously planned or programmed but require prompt attention and must be added to, integrated with, or substituted for previously scheduled workloads.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

unscheduled maintenance

The maintenance performed on an aircraft that was not planned and arose as a result of problems discovered in the course of normal operation.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
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While for other air handlers where unscheduled maintenance was negatively correlated with failure rates, unscheduled maintenance on nonhumidifying air handlers without drives is consistent with a reduction of failures.
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Switching to electric forklifts with exceptionally reliable electronics has reduced the average number of unscheduled maintenance incidents to one per month.
It combines engine testing, control algorithm development, scheduled and unscheduled maintenance, operator feedback and performance goals into a comprehensive, documented package.
Since then, first quarter 2019 revenue trends have also been negatively impacted by more winter weather disruptions than expected, unscheduled maintenance disruptions, further softness in leisure-oriented passenger demand and yields, and the MAX groundings.
These capabilities are part of the unscheduled maintenance phase in the new NacelleLifeTM support offering, which provides complete coverage during the operating life of Safran Nacelles' jet engine nacelle systems.