Which document must a new safety belt conform to in terms of strength requirements when installed in an aircraft?

The new safety belt installed in an aircraft must conform to TSO C22, which is a technical standard order issued by the FAA. This document specifies the minimum performance standards for safety belts used in aviation, including strength and durability requirements. Compliance with TSO C22 ensures that the safety belt can effectively protect occupants in the event of an emergency or crash.

Though FAA Regulation 26, FAR Part 23, and AC 43.13-1B may relate to aircraft safety and standards, TSO C22 is specifically focused on the requirements for safety belts, making it the most relevant document in this context. Therefore, adherence to TSO C22 is essential for maintaining aircraft safety and ensuring that safety belts meet the rigorous standards necessary for aviation use.