Final answer:
When using a self-locking nut on an aircraft bolt, it is important to avoid repetitive or dynamic loading to ensure the nut remains effective in preventing loosening due to vibrations or shocks.
Step-by-step explanation:
The type of loading that should be avoided when using a self-locking nut on an aircraft bolt is repetitive or dynamic loading.
Self-locking nuts are designed to prevent loosening under vibrations and shock, but they can wear out under fluctuating loads. It's important to ensure that these nuts are not subjected to load changes that can cause them to lose their locking effectiveness.
For this reason, they are best used in applications where the load is static, and there is minimal chance of the load changing repeatedly.