Maintenance of aircraft is a comprehensive, ongoing process. The entire aircraft needs to be examined, maintained, and have the necessary parts replaced to uphold the safety standards mandated by the FAA and EASA. Aircraft are required to be maintained after a certain period of calendar time or flight hours or flight cycles. Also, some aircraft articles have a specific life (flight cycle) limit and need to be replaced immediately upon reaching the maximum use requirements. Besides the aircraft articles that are due for replacement, all other parts need to be checked for faults or faulty performance.