Unplanned Maintenance

Any maintenance activity for which a pre-determined job procedure is not documented, or for which all labour, materials, tools, and equipment required to carry out the task are not estimated, and their availability assured before commencement of the task. 

Unplanned maintenance differs from unscheduled maintenance in that the latter may have been planned for a particular fiscal year but not yet scheduled for a particular day.


See also:
Compare with: