What type of wood quality must be used in the repair of aircraft structures?

For the repair of aircraft structures, it is essential to use aircraft quality wood. This designation signifies that the wood meets specific standards and specifications required for aerospace applications, ensuring durability, strength, and resistance to environmental factors. Aircraft quality wood has been processed and selected to minimize defects and enhance performance characteristics, which are critical in maintaining the safety and integrity of the aircraft.

Using wood that meets aircraft quality standards is important because it undergoes rigorous inspection and testing processes that ensure it can withstand the stresses and strains experienced in flight. Such standards typically involve considerations like moisture content, grain structure, and overall integrity.

In contrast, other classifications such as domestic, construction, or furniture quality wood may not meet these stringent requirements. They could have defects that might compromise the repair or the overall safety of the aircraft. Therefore, adhering to the use of aircraft quality wood is paramount in aviation to ensure reliability and airworthiness.