General Performance Rules

Part 42 Subpart D contains the permissions for a person to carry out maintenance of aircraft and aeronautical products. One of those permissions is for a Part 145 AMO to provide maintenance services for an aircraft or aeronautical products.

Part 42 sets out general performance rules covering how to carry out maintenance. For example, it requires maintenance to be carried out:

• In facilities appropriate for that maintenance
  
• In accordance with current maintenance data
  
• Using specific tools and equipment, if mentioned in the maintenance data
  
• By individuals who are competent to carry out the maintenance themselves or are supervised by an individual with that competency
  

Let’s look at some of the specific performance rules for maintainers.