Aircraft engine maintenance can be broadly divided into two categories:
Preventive Maintenance: Scheduled maintenance, inspections, and tasks aimed at preventing engine malfunctions or wear. This includes oil changes, filter replacements, and minor adjustments.
Corrective Maintenance: Involves repairing or replacing components when an issue arises or if performance begins to degrade. It includes the replacement of parts, repair of damaged components, or full overhauls when necessary.