This AC contains methods, techniques, and practices acceptable to the Administrator for the inspection and alteration on nonpressurized areas of civil aircraft of 12,500 pounds gross weight or less. This data generally pertains to minor alterations. However, the alteration data herein may be used as approved data for major alterations when the AC chapter, page, and paragraph are listed in block 8 of Federal Aviation Administration (FAA) Form 337, Major Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance), when the user has determined that it is appropriate to the product being altered, directly applicable to the alteration being made, and not contrary to the manufacturer’s data. This AC contains information pertinent to Title 14 of the Code of Federal Regulations (14 CFR) § 43.13

Title 14 of the Code of Federal Regulations (14 CFR)

• Part 23, Airworthiness Standards: Normal Category Airplanes.
• Part 43, Maintenance, Preventive Maintenance, Rebuilding, and Alteration.
• Part 65, Certification: Airmen Other Than Flight Crewmembers.
• AC 23.2010-1, FAA Accepted Means of Compliance Process for 14 CFR Part 23.