Which regulation states that a checklist must be used during an annual or 100-hour inspection?

The regulation that specifies the requirement for using a checklist during an annual or 100-hour inspection is found in 14 CFR Part 43. This part outlines the maintenance, preventive maintenance, and alterations of aircraft, including standards for conducting inspections.

Utilizing a checklist during these inspections is crucial for ensuring that all necessary tasks are completed systematically, reducing the risk of oversight or omissions that could compromise safety. The regulation emphasizes adherence to protocols that promote thoroughness and standardization in the inspection process, which is vital for the safety and reliability of aircraft operations.

Understanding the importance of this regulation helps reinforce the need for structured procedures in aviation maintenance, ensuring that checks are consistently performed and facilitating compliance with safety standards.