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Chapter 4

Corrective Maintenance

Corrective maintenance is a type of maintenance that addresses problems as they occur in order to restore equipment to its proper functioning state. This type of maintenance is necessary when equipment fails or breaks down, and is typically carried out by skilled technicians who can identify and fix the issue in a timely manner.

Corrective maintenance helps ensure that equipment is operating at optimal levels, which is important for the smooth running of any business or organization.

It is often contrasted with preventive maintenance, which involves regular inspections and upkeep in order to prevent problems from occurring in the first place.


Corrective Maintenance According To Standards

Maintenance carried out after a fault recognition and intended to restore an object into a state in which it can perform a required function.

Corrective maintenance can consist of both deferred and immediate corrective maintenance.

Deferred Corrective Maintenance

  • Corrective maintenance is not carried out immediately after detection of a malfunction, but
    is delayed in accordance with given maintenance directives.
    The work can be planned.

Immediate Corrective Maintenance

  • Maintenance performed immediately after detection of a malfunction to avoid
    unacceptable consequences.


Advantages and Disadvantages of Corrective Maintenance


  • Suitable for machinery that is easy to replace or has low purchasing costs.
  • Suitable for some machinery in redundant systems where no costly side effects can be expected following a breakdown.
  • Needs little or no investment in competence or technology.


  • Means urgent unforeseen machine failures.
  • Difficult and sometimes impossible to schedule maintenance operations.
  • Capital destruction – minor machine problems remain undiscovered and develops into costly breakdowns.
  • Little or no development of staff competence.
  • Risk of personal injury in breakdowns.
  • Increased environmental impact.
  • Higher energy consumption.


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