Which repair method could be applied to a dented steel tube cluster joint?

A formed steel plate welded over the damaged area of a dented steel tube cluster joint is a recognized repair method in the field of aircraft maintenance. This approach helps to restore structural integrity to the joint by distributing stresses more evenly and reinforcing the affected area, minimizing the possibility of further damage.

When welding a formed steel plate, it is essential to ensure proper surface preparation and welding techniques are employed to maintain strength and prevent issues such as warping or additional stress concentrations. This method is preferred over more temporary solutions or those that could compromise the safety or durability of the joint.

The other methods presented would not adequately address the structural concerns of the dented joint or are not permissible within standard maintenance practices. Replacing the entire joint might be excessive if a simpler, effective repair is possible, while using adhesive tape does not provide the necessary strength and could lead to further failure. Drilling a hole through the dent could introduce stress risers that may lead to cracking or failure, undermining the integrity of the joint.