FAA AMT (Aviation Maintenance Technician) Airframe Practice Exam

Preventive maintenance is defined as simple or minor preservation operations and the replacement of small standard parts not involving complex assembly operations. While a private pilot is allowed to perform such maintenance tasks on an aircraft they own or operate, doing so on an aircraft they do not own or operate would be considered a violation. A major repair would require more complex assembly operations and should be performed by a certified mechanic. The option of "irrelevant to their certification" is incorrect because preventive maintenance is a specific privilege granted to private pilots.