What is typically the best practice for repairing a damaged aircraft skin?

Using rivets and patches for reinforcement is typically the best practice for repairing a damaged aircraft skin because this method provides a strong, lasting solution that maintains the structural integrity of the aircraft. Patches can effectively cover areas of damage, and when secured with rivets, they distribute loads and stresses across the surrounding skin, reducing the likelihood of further damage or failure.

This approach is particularly advantageous as it allows for repairs to be made without the need for more extensive and time-consuming procedures, such as replacing larger sections of the aircraft's skin. Additionally, using rivets provides a reliable, established method that is widely supported by industry standards and practices. This method can often be performed in situ, which enhances efficiency and minimizes aircraft downtime.

While bonding techniques can be useful in certain contexts, they may not address all types of skin damage effectively. Replacement of entire sections is more invasive and can be more costly and time-consuming, making it less desirable unless the damage is extensive. Applying sealant over the damage might provide short-term protection from environmental factors but does not address the structural issues related to load-bearing, making it inadequate as a sole repair method.