Final answer:
CFR Part 43 deals with the maintenance, preventive maintenance, rebuilding, and alteration of civilian aircraft. It lays out the qualifications for maintenance personnel, logbook entries, record-keeping, standards for inspections, and use of approved parts to ensure airworthiness.
Step-by-step explanation:
CFR Part 43 covers the maintenance, preventive maintenance, rebuilding, and alteration of civilian aircraft, excluding ultralight aircraft. These regulations are applicable to aircraft registered in the United States. The main purpose of CFR Part 43 is to ensure that any work performed on an aircraft meets the prescribed airworthiness standards to maintain the safety and reliability of the aircraft.
According to CFR Part 43, only qualified personnel are allowed to perform maintenance on aircraft, and they must follow specific procedures and use approved parts. This part of the CFR details the logbook entries, record keeping requirements, and standards for inspections that must be adhered to. Maintenance actions range from routine inspections and repairs to major overhauls and modifications.