1. Must be Private/Sport Pilot or better - [[FAR 43.3 Persons Authorized to Maintain]] 2. Must be aircraft logbook entry with work completed, name, signature, type of cert and #, date - [[FAR 43.9 Maintenance Records]] 3. Aircraft cannot be operated under Part 121, 129, 135 Ops - [[FAR 43.3 Persons Authorized to Maintain]] ***Related To***: [[AC 43-12]], [[preventive maintenance]]