In aircraft hangar maintenance, a non-routine is raised when an unexpected issue is discovered. This can occur during flights, inspections, or while technicians perform maintenance work. Once a non-routine is raised, it can be assessed and either fixed or deferred.
You can raise non-routines from the following pages:
Once a non-routine is created, you can update its information from the Task Details or Fault Details page before it is deferred or closed. A technician can raise a non-routine issue during line maintenance as well.
Note: If the DEFER_NR_LB_REF_MANDT parameter is set to YES, adding a logbook reference is mandatory to defer the non-routine.